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• What Is a Case Study? | Definition, Examples & Methods

What Is a Case Study? | Definition, Examples & Methods

Published on May 8, 2019 by Shona McCombes . Revised on November 20, 2023.

A case study is a detailed study of a specific subject, such as a person, group, place, event, organization, or phenomenon. Case studies are commonly used in social, educational, clinical, and business research.

A case study research design usually involves qualitative methods , but quantitative methods are sometimes also used. Case studies are good for describing , comparing, evaluating and understanding different aspects of a research problem .

Table of contents

When to do a case study, step 1: select a case, step 2: build a theoretical framework, step 3: collect your data, step 4: describe and analyze the case, other interesting articles.

A case study is an appropriate research design when you want to gain concrete, contextual, in-depth knowledge about a specific real-world subject. It allows you to explore the key characteristics, meanings, and implications of the case.

Case studies are often a good choice in a thesis or dissertation . They keep your project focused and manageable when you don’t have the time or resources to do large-scale research.

You might use just one complex case study where you explore a single subject in depth, or conduct multiple case studies to compare and illuminate different aspects of your research problem.

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Once you have developed your problem statement and research questions , you should be ready to choose the specific case that you want to focus on. A good case study should have the potential to:

• Provide new or unexpected insights into the subject
• Challenge or complicate existing assumptions and theories
• Propose practical courses of action to resolve a problem
• Open up new directions for future research

TipIf your research is more practical in nature and aims to simultaneously investigate an issue as you solve it, consider conducting action research instead.

Unlike quantitative or experimental research , a strong case study does not require a random or representative sample. In fact, case studies often deliberately focus on unusual, neglected, or outlying cases which may shed new light on the research problem.

Example of an outlying case studyIn the 1960s the town of Roseto, Pennsylvania was discovered to have extremely low rates of heart disease compared to the US average. It became an important case study for understanding previously neglected causes of heart disease.

However, you can also choose a more common or representative case to exemplify a particular category, experience or phenomenon.

Example of a representative case studyIn the 1920s, two sociologists used Muncie, Indiana as a case study of a typical American city that supposedly exemplified the changing culture of the US at the time.

While case studies focus more on concrete details than general theories, they should usually have some connection with theory in the field. This way the case study is not just an isolated description, but is integrated into existing knowledge about the topic. It might aim to:

• Exemplify a theory by showing how it explains the case under investigation
• Expand on a theory by uncovering new concepts and ideas that need to be incorporated
• Challenge a theory by exploring an outlier case that doesn’t fit with established assumptions

To ensure that your analysis of the case has a solid academic grounding, you should conduct a literature review of sources related to the topic and develop a theoretical framework . This means identifying key concepts and theories to guide your analysis and interpretation.

There are many different research methods you can use to collect data on your subject. Case studies tend to focus on qualitative data using methods such as interviews , observations , and analysis of primary and secondary sources (e.g., newspaper articles, photographs, official records). Sometimes a case study will also collect quantitative data.

Example of a mixed methods case studyFor a case study of a wind farm development in a rural area, you could collect quantitative data on employment rates and business revenue, collect qualitative data on local people’s perceptions and experiences, and analyze local and national media coverage of the development.

The aim is to gain as thorough an understanding as possible of the case and its context.

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In writing up the case study, you need to bring together all the relevant aspects to give as complete a picture as possible of the subject.

How you report your findings depends on the type of research you are doing. Some case studies are structured like a standard scientific paper or thesis , with separate sections or chapters for the methods , results and discussion .

Others are written in a more narrative style, aiming to explore the case from various angles and analyze its meanings and implications (for example, by using textual analysis or discourse analysis ).

In all cases, though, make sure to give contextual details about the case, connect it back to the literature and theory, and discuss how it fits into wider patterns or debates.

If you want to know more about statistics , methodology , or research bias , make sure to check out some of our other articles with explanations and examples.

• Normal distribution
• Degrees of freedom
• Null hypothesis
• Discourse analysis
• Control groups
• Mixed methods research
• Non-probability sampling
• Quantitative research
• Ecological validity

Research bias

• Rosenthal effect
• Implicit bias
• Cognitive bias
• Selection bias
• Negativity bias
• Status quo bias

Cite this Scribbr article

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McCombes, S. (2023, November 20). What Is a Case Study? | Definition, Examples & Methods. Scribbr. Retrieved April 17, 2024, from https://www.scribbr.com/methodology/case-study/

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The most-read case studies of 2021, and the profs who wrote them.

Debapratim Pukayastha of ICFAI Business School in India topped the Case Centre’s list of the world’s top case studies for the sixth straight year. Sadly, Pukayastha passed away in May from Covid-19.

Harvard Business School, which invented both the first MBA program and the business case method, remains king of the case study 100 years later, according to the latest international ranking of case authors.

The Case Centre, a nonprofit that distributes the largest collection of management case studies to business schools across the world, today (October 25) unveiled its 2020-21 Top 50 Bestselling Case Authors. HBS had more case authors (nine) on the list than any other business school. However, ICFAI Business School in India was close behind with seven authors, including all three top individual spots. INSEAD had four authors in the top 10, while Harvard has two top-10 authors.

Case studies, which use real-life problems faced by business executives, are still one of the most widely used education tools for MBA students across the globe. More than 8,800 faculty are registered as authors with The Case Centre. This year’s list of best-selling cases includes each author’s top-selling cases — and though MBA students may not recognize the names of a case study’s author, the titles are more likely ring a bell.

SIX YEARS AT NO. 1, BUT A POSTHUMOUS HONOR

Debapratim Pukayastha of ICFAI Business School (IBS) in India topped the Case Centre’s list of bestselling authors for the sixth straight year. He has earned the distinction every year since the Case Centre began issuing yearly awards for case writing. But this year’s award was a bittersweet honor, as Pukayastha passed away in May from Covid-19.

“Selling over 100,000 copies from an extensive back catalogue of cases since the list was introduced in 2016, Debapratim’s undoubted impact on the case method and management education will live on for years through the many case authors and teachers he has inspired,” the Case Centre announced, “and the vast number of students whose education has been enhanced by learning through his cases.”

Among Pukayastha’s best-selling cases are an examination of safety lapses at a BP oil refinery in Texas City that led to one of the most serious workplace accidents in U.S. history; a case looking at Netflix’s leveraging of Big Data to predict hits; and a case examining how Procter & Gamble develops new products. Besides his annual plaudits for bestselling case, he also won the Case Centre’s Outstanding Contribution to the Case Method Award in 2015, 2018, and 2019.

“I believe that one can be a good teacher without being a good case writer, but it’s not possible to be a good case writer without being a good teacher,” Pukayastha wrote in an author profile on the Case Centre website . “However, I have also found that regularly writing cases can greatly improve classroom teaching. Case writing can be a lonely activity and even hard work, but if you have the passion, it’s worth it! It means you can have a positive impact in classrooms around the world where your case is taught.”

This infographic from The Case Centre shows the key demographic trends in the 2020/21 Top Bestselling Case Authors ranking. Courtesy Case Centre

WHERE TO TOP B-SCHOOL CASE STUDIES COME FROM

The UK- and U.S.-based Case Centre has released its bestselling case author list every year since 2016, ranking authors whose cases have sold the most copies during the previous academic year. This year, it raised the number of bestselling authors from 40 to 50.

Of this year’s list, authors came from 19 different business schools in nine separate countries. That includes 42% each from Europe and the United States, and 16% from Asia.

“As the list increases from 40 to 50, we see a change in the geographic dynamics,” the nonprofit announced. “European and U.S. schools each have a 42% share of the 2020/21 Top 50, down from 45% in 2019-20. While the representation of schools in Asia rises to 16%, up from 10% last year.”

Eighteen percent of the authors are women while 82% are men. While the list does not break down bestselling cases by the race, ethnicity or gender of its protagonists, finding case studies that represent the increasing diversity of business students (and in business executives) has been an ongoing concern for many B-schools’ diversity, equity, and inclusion efforts. For example, Harvard Business School published more than 70 cases with Black or African-American protagonists this past year after long-standing criticism that its studies ignored Black business leaders, according to a Poets&Quants article published in June .

It also produced 90 cases featuring Hispanic, Asian or Asian-American/Pacific Islander, or Native-American protagonists. HBS faculty write about 400 case studies per year.

“Our students are right that protagonist diversity matters,” Jan Rivkin, HBS senior associate dean and chair of the MBA program, said in June . “By studying cases with a wide diversity of protagonists, students learn that talent and leadership come from all backgrounds and identities. If students don’t understand that, they’ll worsen inequities, miss out on opportunities for themselves, and miss chances to create opportunities for others.”

DEBUT AUTHORS EARN TOP SPOTS

ICFAI Business School also had the No. 2 and No. 3 authors, and both are new entrants to the Case Centre’s list.

Second-ranked author Indu Perepu is an assistant professor specializing in human resource management. Her best-selling cases include “Airbnb: A Disruptive Innovator” and “Snapchat Turns Down Facebook’s Acquisition Offer.”

“What makes the case study method even more meaningful is that in developing countries like India where teaching through cases is picking up, case studies help the students with limited international exposure to learn intricately about multinational corporations and the world’s largest companies,” Perepu says.

Third-ranked author Syeda Maseeha Qumer is an assistant professor specializing in business strategy. For her top-selling cases, she looked at the integrated marketing strategy of HBO’s Game of Thrones and the impact of conflict palm oil on deforestation, human rights violations, and climate pollution, and PepsiCo’s use of it in its products.

“Case-based learning is unmatched in its ability to engage students and teach essential concepts that are relevant to practicing managers,” Qumer says. “Innovation in the case method is essential to enliven any classroom and to obtain better learning outcomes. I have always endeavored to develop diverse cases on contemporary issues that offer students an opportunity to explore complex real-world management challenges in the classroom, allowing them to assess their decision-making skills before taking the plunge into the corporate world.”

France’s ESSEC Business School had the top climbing author, Ashok Som , who moved up 26 places to No. 11 from last year’s ranking.

See the full list of this year’s case-writing winners on page 2, including links to their bios.

Harvard Business School is the home of the business case study. Once again it is also where most of the top-ranked cases were written in 2021

Beyond its ranking of case study authors, the Case Centre trains faculty in using case studies in B-school education, runs international case competitions and offers scholarships to unpublished case writers and teachers. Membership includes more than 500 business schools and organizations around the world.

See its full release and read about other best-selling authors here .

1. The Top 50 Bestselling Case Authors 2020/21 – full list

1 Debapratim Purkayastha , ICFAI Business School (IBS) 2 Indu Perepu , ICFAI Business School (IBS) 3 Syeda Maseeha Qumer , ICFAI Business School (IBS) 4 W Chan Kim , INSEAD (joint) 4 Renée Mauborgne , INSEAD (joint) 6 Joerg Niessing , INSEAD 7 Christopher A Bartlett , Harvard Business School 8 Wolfgang Ulaga , INSEAD 9 David B Yoffie , Harvard Business School 10 Nader Tavassoli , London Business School 11 Ashok Som , ESSEC Business School 12 Jill Avery , Harvard Business School 13 Kamran Kashani , Institute for Management Development (IMD) 14 Youngme Moon , Harvard Business School 15 Kasra Ferdows , McDonough School of Business, Georgetown University 16 John A Quelch , Miami Business School 17 David Dubois , INSEAD 18 Carlos Cordon , Institute for Management Development (IMD) 19 Michael Lewis , University of Bath School of Management (joint) 19 Jose A D Machuca , Universidad de Sevilla (joint) 21 David J Collis , Harvard Business School 22 Pierre Chandon , INSEAD 23 Mohanbir Sawhney , Kellogg School of Management 24 Robert F Bruner , University of Virginia Darden School of Business 25 Denis Gromb , HEC Paris 26 Urs Mueller , SDA Bocconi School of Management 27 Vivek Gupta , TechSci Research 28 Jamie Anderson , Antwerp Management School 29 Benoit Leleux , Institute for Management Development (IMD) 30 Sanjib Dutta , ICFAI Business School (IBS) 31 Vincent Dessain , Harvard Business School 32 GV Muralidhara , ICFAI Business School (IBS) 33 Jitesh Nair , ICFAI Business School (IBS) 34 Michael J Schill , University of Virginia Darden School of Business 35 Elizabeth Grasby , Ivey Business School 36 Horacio Falcão , INSEAD 37 Robert S Kaplan , Harvard Business School 38 Seán A Meehan , Institute for Management Development (IMD) 39 Herminia Ibarra , London Business School 40 Ian Dunn , Ivey Business School 41 Peter Killing , Institute for Management Development (IMD) 42 Stefan Michel , Institute for Management Development (IMD) 43 Jan W Rivkin , Harvard Business School 44 Inyoung Chae , Goizueta Business School, Emory University 45 Sean D Carr , University of Virginia Darden School of Business 46 James E Hatch , Ivey Business School 47 Thales Teixeira , Decoupling.co 48 Eric Van den Steen , Harvard Business School 49 V Namratha Prasad , ICFAI Business School (IBS) 50 P Fraser Johnson , Ivey Business School

DON’T MISS HOW TO REVIEW MBA CASE STUDIES LIKE AN EXECUTIVE and HARVARD BUSINESS SCHOOL FACULTY PUBLISHED 70 CASES WITH BLACK PROTAGONISTS THIS PAST YEAR

The post The Most-Read Case Studies Of 2021, And The Profs Who Wrote Them appeared first on Poets&Quants .

Top 40 Most Popular Case Studies of 2018

Cases about food and agriculture took center stage in 2018. A case on the coffee supply chain remained the top case and cases on burgers, chocolate, and palm oil all made the top ten.

Cases about food and agriculture took center stage in 2018. A case on the coffee supply chain remained the top case and cases on burgers, chocolate, and palm oil all made the top ten, according to data compiled by Yale School of Management Case Research and Development Team (SOM CRDT).

Other topics in the top ten included corporate social responsibility, healthcare, solar energy, and financial inclusion.

The annual ranking of the 40 most popular Yale School of Management case studies combines data from publishers, Google analytics, SOM class syllabi, and other measures of interest and adoption. This is the second year that SOM CRDT has published its Top 40 list.

Cases published in 2018 on the top 40 list included Marina Bay Sands Hotel (#13), AgBiome (#18), Canary Wharf (#20), Mastercard (#21), and Peabody Museum (#35). Both the Marina Bay Sands and Peabody cases were featured in major student competitions in 2018.

The cases on the Top 40 list represent a variety of different business disciplines, as Yale SOM cases tend to combine a variety of perspectives. For example, the top coffee case can be taught in marketing, operations, and strategy classes. The number two case on Shake Shack covers finance, strategy, and even innovation and design. The list features a number of cases related to the interplay of state and commerce and social enterprise, traditional strengths of the Yale SOM curriculum.

While there are many US-based cases among the top 40, a range of locales are highlighted among the top 40 entries. Cases set in France (AXA), Great Britain (Cadbury, Canary Wharf, George Hudson), Indonesia (Palm Oil, Golden Agri), China (Ant Financial, Alibaba), India (SELCO, Project Sammaan), Singapore (Marina Bay Sands), Canada (Air Canada, Potash Corporation of Saskatchewan), and South Africa (Project Masiluleke) made the top 40 list.

SOM CRDT has been working to increase the number of women featured as case protagonists. The 2018 list boasts 13 cases where women play prominent roles in the narrative.

The top 40 list also demonstrates a wide range of SOM faculty involvement. Thirty different faculty members worked as case supervisors on the top 40 cases.

Read on to learn more about the top 10 most popular cases followed by a complete list of the top 40 cases of 2018. A selection of the top 40 cases are available for purchase through our online store . 

#1 - Coffee 2016

Faculty Supervision: Todd Cort

Coffee 2016 asks students to consider the coffee supply chain and generate ideas for what can be done to equalize returns across various stakeholders. The case draws a parallel between coffee and wine. Both beverages encourage connoisseurship, but only wine growers reap a premium for their efforts to ensure quality.  The case describes the history of coffee production across the world, the rise of the “third wave” of coffee consumption in the developed world, the efforts of the Illy Company to help coffee growers, and the differences between “fair” trade and direct trade. Faculty have found the case provides a wide canvas to discuss supply chain issues, examine marketing practices, and encourage creative solutions to business problems. 

#2 - Shake Shack IPO

Faculty Supervision: Jake Thomas and Geert Rouwenhorst

From an art project in a New York City park, Shake Shack developed a devoted fan base that greeted new Shake Shack locations with cheers and long lines. When Shake Shack went public on January 30, 2015, investors displayed a similar enthusiasm. Opening day investors bid up the $21 per share offering price by 118% to reach $45.90 at closing bell. By the end of May, investors were paying $92.86 per share. Students are asked if this price represented a realistic valuation of the enterprise and if not, what was Shake Shack truly worth? The case provides extensive information on Shake Shack’s marketing, competitors, operations and financials, allowing instructors to weave a wide variety of factors into a valuation of the company.

#3 - IBM Corporate Service Corps

Faculty Supervision: David Bach in cooperation with University of Ghana Business School and EGADE

The case considers IBM’s Corporate Service Corps (CSC), a program that had become the largest pro bono consulting program in the world. The case describes the program’s triple-benefit: leadership training to the brightest young IBMers, brand recognition for IBM in emerging markets, and community improvement in the areas served by IBM’s host organizations. As the program entered its second decade in 2016, students are asked to consider how the program can be improved. The case allows faculty to lead a discussion about training, marketing in emerging economies, and various ways of providing social benefit. The case highlights the synergies as well as trade-offs between pursuing these triple benefits.

#4 - Children’s Premier

Faculty Supervision: Edieal Pinker

The case describes Children’s Premier, a popular group practice in Greenwich, Connecticut which, due to a change in the state’s vaccination law, decides to dramatically change its business model. Did the group make the right adjustments in order to stay competitive and cover their increasing costs? Should the new practices cause a newcomer to the practice to look elsewhere for his children?

#5 - Design at Mayo

Faculty Supervision: Rodrigo Canales and William Drentell

The case describes how the Mayo Clinic, one of the most prominent hospitals in the world, engaged designers and built a research institute, the Center for Innovation (CFI), to study the processes of healthcare provision. The case documents the many incremental innovations the designers were able to implement and the way designers learned to interact with physicians and vice-versa.

In 2010 there were questions about how the CFI would achieve its stated aspiration of “transformational change” in the healthcare field. Students are asked what would a major change in health care delivery look like? How should the CFI's impact be measured? Were the center's structure and processes appropriate for transformational change? Faculty have found this a great case to discuss institutional obstacles to innovation, the importance of culture in organizational change efforts, and the differences in types of innovation.

This case is freely available to the public.

#6 - AXA: Creating New Corporate Responsibility Metrics

Faculty Supervision: Todd Cort and David Bach

The case describes AXA’s corporate responsibility (CR) function. The company, a global leader in insurance and asset management, had distinguished itself in CR since formally establishing a CR unit in 2008. As the case opens, AXA’s CR unit is being moved from the marketing function to the strategy group occasioning a thorough review as to how CR should fit into AXA’s operations and strategy. Students are asked to identify CR issues of particular concern to the company, examine how addressing these issues would add value to the company, and then create metrics that would capture a business unit’s success or failure in addressing the concerns.

#7 - Cadbury: An Ethical Company Struggles to Insure the Integrity of Its Supply Chain

Faculty Supervision: Ira Millstein

The case describes revelations that the production of cocoa in the Côte d’Ivoire involved child slave labor. These stories hit Cadbury especially hard. Cadbury's culture had been deeply rooted in the religious traditions of the company's founders, and the organization had paid close attention to the welfare of its workers and its sourcing practices. The US Congress was considering legislation that would allow chocolate grown on certified plantations to be labeled “slave labor free,” painting the rest of the industry in a bad light. Chocolate producers had asked for time to rectify the situation, but the extension they negotiated was running out. Students are asked whether Cadbury should join with the industry to lobby for more time?  What else could Cadbury do to ensure its supply chain was ethically managed?

#8 - Palm Oil 2016

Faculty Supervision: Kenneth Richards in cooperation with National University of Singapore Business School and David Bach

The case looks at the palm oil industry in Indonesia and how the industry effects deforestation and native rights. The case focuses on a proposal forwarded by leading palm oil traders and environmental NGOs that would ban the sale of palm oil from deforested land. The proposal is opposed by elements of the government, and smaller palm oil companies. Some voices in the Indonesian government are suggesting an agreement to end deforestation needs to be scrapped. What should companies and NGOs do?

#9 - Ant Financial

Faculty Supervision: K. Sudhir in cooperation with Renmin University of China School of Business

In 2015, Ant Financial’s MYbank (an offshoot of Jack Ma’s Alibaba company) was looking to extend services to rural areas in China by providing small loans to farmers. Microloans have always been costly for financial institutions to offer to the unbanked (though important in development) but MYbank believed that fintech innovations such as using the internet to communicate with loan applicants and judge their credit worthiness would make the program sustainable. Students are asked whether MYbank could operate the program at scale? Would its big data and technical analysis provide an accurate measure of credit risk for loans to small customers? Could MYbank rely on its new credit-scoring system to reduce operating costs to make the program sustainable?

#10 - SELCO

Faculty Supervision: Tony Sheldon

The case looks at SELCO, an Indian company that specialized in bringing solar electric products to the poor. In 2009, the company needed a new growth strategy. As students consider the company’s dilemma, the raw case allows them to view video interviews with company leaders and customers, inspect maps of SELCO’s service areas, see videos describing how SELCO’s products were being used, consider articles on India’s electricity grid and socio-economic conditions, read about the company’s founding, consult the company’s organization charts, income statements and balance sheets, inspect the company’s innovative products, review the company’s business models, read news articles about the company’s success, etc.

SELCO, India's innovative solar electric company, was at a strategic crossroads. Should it go “deeper” and serve even poorer people or go “wider” and expand beyond its current geographical areas?

40 Most Popular Case Studies of 2018

Click on the case title to learn more about the dilemma. A selection of our most popular cases are available for purchase via our online store .

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• Knowledge Base
• Methodology
• Case Study | Definition, Examples & Methods

Case Study | Definition, Examples & Methods

Published on 5 May 2022 by Shona McCombes . Revised on 30 January 2023.

A case study is a detailed study of a specific subject, such as a person, group, place, event, organisation, or phenomenon. Case studies are commonly used in social, educational, clinical, and business research.

A case study research design usually involves qualitative methods , but quantitative methods are sometimes also used. Case studies are good for describing , comparing, evaluating, and understanding different aspects of a research problem .

Table of contents

When to do a case study, step 1: select a case, step 2: build a theoretical framework, step 3: collect your data, step 4: describe and analyse the case.

A case study is an appropriate research design when you want to gain concrete, contextual, in-depth knowledge about a specific real-world subject. It allows you to explore the key characteristics, meanings, and implications of the case.

Case studies are often a good choice in a thesis or dissertation . They keep your project focused and manageable when you don’t have the time or resources to do large-scale research.

You might use just one complex case study where you explore a single subject in depth, or conduct multiple case studies to compare and illuminate different aspects of your research problem.

Prevent plagiarism, run a free check.

Once you have developed your problem statement and research questions , you should be ready to choose the specific case that you want to focus on. A good case study should have the potential to:

• Provide new or unexpected insights into the subject
• Challenge or complicate existing assumptions and theories
• Propose practical courses of action to resolve a problem
• Open up new directions for future research

Unlike quantitative or experimental research, a strong case study does not require a random or representative sample. In fact, case studies often deliberately focus on unusual, neglected, or outlying cases which may shed new light on the research problem.

If you find yourself aiming to simultaneously investigate and solve an issue, consider conducting action research . As its name suggests, action research conducts research and takes action at the same time, and is highly iterative and flexible. 

However, you can also choose a more common or representative case to exemplify a particular category, experience, or phenomenon.

While case studies focus more on concrete details than general theories, they should usually have some connection with theory in the field. This way the case study is not just an isolated description, but is integrated into existing knowledge about the topic. It might aim to:

• Exemplify a theory by showing how it explains the case under investigation
• Expand on a theory by uncovering new concepts and ideas that need to be incorporated
• Challenge a theory by exploring an outlier case that doesn’t fit with established assumptions

To ensure that your analysis of the case has a solid academic grounding, you should conduct a literature review of sources related to the topic and develop a theoretical framework . This means identifying key concepts and theories to guide your analysis and interpretation.

There are many different research methods you can use to collect data on your subject. Case studies tend to focus on qualitative data using methods such as interviews, observations, and analysis of primary and secondary sources (e.g., newspaper articles, photographs, official records). Sometimes a case study will also collect quantitative data .

The aim is to gain as thorough an understanding as possible of the case and its context.

In writing up the case study, you need to bring together all the relevant aspects to give as complete a picture as possible of the subject.

How you report your findings depends on the type of research you are doing. Some case studies are structured like a standard scientific paper or thesis, with separate sections or chapters for the methods , results , and discussion .

Others are written in a more narrative style, aiming to explore the case from various angles and analyse its meanings and implications (for example, by using textual analysis or discourse analysis ).

In all cases, though, make sure to give contextual details about the case, connect it back to the literature and theory, and discuss how it fits into wider patterns or debates.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the ‘Cite this Scribbr article’ button to automatically add the citation to our free Reference Generator.

McCombes, S. (2023, January 30). Case Study | Definition, Examples & Methods. Scribbr. Retrieved 15 April 2024, from https://www.scribbr.co.uk/research-methods/case-studies/

Is this article helpful?

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Blog Case Study

How to Present a Case Study like a Pro (With Examples)

By Danesh Ramuthi , Sep 07, 2023

Okay, let’s get real: case studies can be kinda snooze-worthy. But guess what? They don’t have to be!

In this article, I will cover every element that transforms a mere report into a compelling case study, from selecting the right metrics to using persuasive narrative techniques.

And if you’re feeling a little lost, don’t worry! There are cool tools like Venngage’s Case Study Creator to help you whip up something awesome, even if you’re short on time. Plus, the pre-designed case study templates are like instant polish because let’s be honest, everyone loves a shortcut.

Click to jump ahead: 

What is a case study presentation?

What is the purpose of presenting a case study, how to structure a case study presentation, how long should a case study presentation be, 5 case study presentation examples with templates, 6 tips for delivering an effective case study presentation, 5 common mistakes to avoid in a case study presentation, how to present a case study faqs.

A case study presentation involves a comprehensive examination of a specific subject, which could range from an individual, group, location, event, organization or phenomenon.

They’re like puzzles you get to solve with the audience, all while making you think outside the box.

Unlike a basic report or whitepaper, the purpose of a case study presentation is to stimulate critical thinking among the viewers. 

The primary objective of a case study is to provide an extensive and profound comprehension of the chosen topic. You don’t just throw numbers at your audience. You use examples and real-life cases to make you think and see things from different angles.

The primary purpose of presenting a case study is to offer a comprehensive, evidence-based argument that informs, persuades and engages your audience.

Here’s the juicy part: presenting that case study can be your secret weapon. Whether you’re pitching a groundbreaking idea to a room full of suits or trying to impress your professor with your A-game, a well-crafted case study can be the magic dust that sprinkles brilliance over your words.

Think of it like digging into a puzzle you can’t quite crack . A case study lets you explore every piece, turn it over and see how it fits together. This close-up look helps you understand the whole picture, not just a blurry snapshot.

It’s also your chance to showcase how you analyze things, step by step, until you reach a conclusion. It’s all about being open and honest about how you got there.

Besides, presenting a case study gives you an opportunity to connect data and real-world scenarios in a compelling narrative. It helps to make your argument more relatable and accessible, increasing its impact on your audience.

One of the contexts where case studies can be very helpful is during the job interview. In some job interviews, you as candidates may be asked to present a case study as part of the selection process.

Having a case study presentation prepared allows the candidate to demonstrate their ability to understand complex issues, formulate strategies and communicate their ideas effectively.

The way you present a case study can make all the difference in how it’s received. A well-structured presentation not only holds the attention of your audience but also ensures that your key points are communicated clearly and effectively.

In this section, let’s go through the key steps that’ll help you structure your case study presentation for maximum impact.

Let’s get into it. 

Open with an introductory overview 

Start by introducing the subject of your case study and its relevance. Explain why this case study is important and who would benefit from the insights gained. This is your opportunity to grab your audience’s attention.

Explain the problem in question

Dive into the problem or challenge that the case study focuses on. Provide enough background information for the audience to understand the issue. If possible, quantify the problem using data or metrics to show the magnitude or severity.

Detail the solutions to solve the problem

After outlining the problem, describe the steps taken to find a solution. This could include the methodology, any experiments or tests performed and the options that were considered. Make sure to elaborate on why the final solution was chosen over the others.

Key stakeholders Involved

Talk about the individuals, groups or organizations that were directly impacted by or involved in the problem and its solution. 

Stakeholders may experience a range of outcomes—some may benefit, while others could face setbacks.

For example, in a business transformation case study, employees could face job relocations or changes in work culture, while shareholders might be looking at potential gains or losses.

Discuss the key results & outcomes

Discuss the results of implementing the solution. Use data and metrics to back up your statements. Did the solution meet its objectives? What impact did it have on the stakeholders? Be honest about any setbacks or areas for improvement as well.

Include visuals to support your analysis

Visual aids can be incredibly effective in helping your audience grasp complex issues. Utilize charts, graphs, images or video clips to supplement your points. Make sure to explain each visual and how it contributes to your overall argument.

Pie charts illustrate the proportion of different components within a whole, useful for visualizing market share, budget allocation or user demographics.

This is particularly useful especially if you’re displaying survey results in your case study presentation.

Stacked charts on the other hand are perfect for visualizing composition and trends. This is great for analyzing things like customer demographics, product breakdowns or budget allocation in your case study.

Consider this example of a stacked bar chart template. It provides a straightforward summary of the top-selling cake flavors across various locations, offering a quick and comprehensive view of the data.

Not the chart you’re looking for? Browse Venngage’s gallery of chart templates to find the perfect one that’ll captivate your audience and level up your data storytelling.

Recommendations and next steps

Wrap up by providing recommendations based on the case study findings. Outline the next steps that stakeholders should take to either expand on the success of the project or address any remaining challenges.

Acknowledgments and references

Thank the people who contributed to the case study and helped in the problem-solving process. Cite any external resources, reports or data sets that contributed to your analysis.

Feedback & Q&A session

Open the floor for questions and feedback from your audience. This allows for further discussion and can provide additional insights that may not have been considered previously.

Closing remarks

Conclude the presentation by summarizing the key points and emphasizing the takeaways. Thank your audience for their time and participation and express your willingness to engage in further discussions or collaborations on the subject.

Well, the length of a case study presentation can vary depending on the complexity of the topic and the needs of your audience. However, a typical business or academic presentation often lasts between 15 to 30 minutes. 

This time frame usually allows for a thorough explanation of the case while maintaining audience engagement. However, always consider leaving a few minutes at the end for a Q&A session to address any questions or clarify points made during the presentation.

When it comes to presenting a compelling case study, having a well-structured template can be a game-changer. 

It helps you organize your thoughts, data and findings in a coherent and visually pleasing manner. 

Not all case studies are created equal and different scenarios require distinct approaches for maximum impact. 

To save you time and effort, I have curated a list of 5 versatile case study presentation templates, each designed for specific needs and audiences. 

Here are some best case study presentation examples that showcase effective strategies for engaging your audience and conveying complex information clearly.

1 . Lab report case study template

Ever feel like your research gets lost in a world of endless numbers and jargon? Lab case studies are your way out!

Think of it as building a bridge between your cool experiment and everyone else. It’s more than just reporting results – it’s explaining the “why” and “how” in a way that grabs attention and makes sense.

This lap report template acts as a blueprint for your report, guiding you through each essential section (introduction, methods, results, etc.) in a logical order.

Want to present your research like a pro? Browse our research presentation template gallery for creative inspiration!

2. Product case study template

It’s time you ditch those boring slideshows and bullet points because I’ve got a better way to win over clients: product case study templates.

Instead of just listing features and benefits, you get to create a clear and concise story that shows potential clients exactly what your product can do for them. It’s like painting a picture they can easily visualize, helping them understand the value your product brings to the table.

Grab the template below, fill in the details, and watch as your product’s impact comes to life!

3. Content marketing case study template

In digital marketing, showcasing your accomplishments is as vital as achieving them. 

A well-crafted case study not only acts as a testament to your successes but can also serve as an instructional tool for others. 

With this coral content marketing case study template—a perfect blend of vibrant design and structured documentation, you can narrate your marketing triumphs effectively.

4. Case study psychology template

Understanding how people tick is one of psychology’s biggest quests and case studies are like magnifying glasses for the mind. They offer in-depth looks at real-life behaviors, emotions and thought processes, revealing fascinating insights into what makes us human.

Writing a top-notch case study, though, can be a challenge. It requires careful organization, clear presentation and meticulous attention to detail. That’s where a good case study psychology template comes in handy.

Think of it as a helpful guide, taking care of formatting and structure while you focus on the juicy content. No more wrestling with layouts or margins – just pour your research magic into crafting a compelling narrative.

5. Lead generation case study template

Lead generation can be a real head-scratcher. But here’s a little help: a lead generation case study.

Think of it like a friendly handshake and a confident resume all rolled into one. It’s your chance to showcase your expertise, share real-world successes and offer valuable insights. Potential clients get to see your track record, understand your approach and decide if you’re the right fit.

No need to start from scratch, though. This lead generation case study template guides you step-by-step through crafting a clear, compelling narrative that highlights your wins and offers actionable tips for others. Fill in the gaps with your specific data and strategies, and voilà! You’ve got a powerful tool to attract new customers.

Related: 15+ Professional Case Study Examples [Design Tips + Templates]

So, you’ve spent hours crafting the perfect case study and are now tasked with presenting it. Crafting the case study is only half the battle; delivering it effectively is equally important. 

Whether you’re facing a room of executives, academics or potential clients, how you present your findings can make a significant difference in how your work is received. 

Forget boring reports and snooze-inducing presentations! Let’s make your case study sing. Here are some key pointers to turn information into an engaging and persuasive performance:

• Know your audience : Tailor your presentation to the knowledge level and interests of your audience. Remember to use language and examples that resonate with them.
• Rehearse : Rehearsing your case study presentation is the key to a smooth delivery and for ensuring that you stay within the allotted time. Practice helps you fine-tune your pacing, hone your speaking skills with good word pronunciations and become comfortable with the material, leading to a more confident, conversational and effective presentation.
• Start strong : Open with a compelling introduction that grabs your audience’s attention. You might want to use an interesting statistic, a provocative question or a brief story that sets the stage for your case study.
• Be clear and concise : Avoid jargon and overly complex sentences. Get to the point quickly and stay focused on your objectives.
• Use visual aids : Incorporate slides with graphics, charts or videos to supplement your verbal presentation. Make sure they are easy to read and understand.
• Tell a story : Use storytelling techniques to make the case study more engaging. A well-told narrative can help you make complex data more relatable and easier to digest.

Ditching the dry reports and slide decks? Venngage’s case study templates let you wow customers with your solutions and gain insights to improve your business plan. Pre-built templates, visual magic and customer captivation – all just a click away. Go tell your story and watch them say “wow!”

Nailed your case study, but want to make your presentation even stronger? Avoid these common mistakes to ensure your audience gets the most out of it:

Overloading with information

A case study is not an encyclopedia. Overloading your presentation with excessive data, text or jargon can make it cumbersome and difficult for the audience to digest the key points. Stick to what’s essential and impactful. Need help making your data clear and impactful? Our data presentation templates can help! Find clear and engaging visuals to showcase your findings.

Lack of structure

Jumping haphazardly between points or topics can confuse your audience. A well-structured presentation, with a logical flow from introduction to conclusion, is crucial for effective communication.

Ignoring the audience

Different audiences have different needs and levels of understanding. Failing to adapt your presentation to your audience can result in a disconnect and a less impactful presentation.

Poor visual elements

While content is king, poor design or lack of visual elements can make your case study dull or hard to follow. Make sure you use high-quality images, graphs and other visual aids to support your narrative.

Not focusing on results

A case study aims to showcase a problem and its solution, but what most people care about are the results. Failing to highlight or adequately explain the outcomes can make your presentation fall flat.

How to start a case study presentation?

Starting a case study presentation effectively involves a few key steps:

• Grab attention : Open with a hook—an intriguing statistic, a provocative question or a compelling visual—to engage your audience from the get-go.
• Set the stage : Briefly introduce the subject, context and relevance of the case study to give your audience an idea of what to expect.
• Outline objectives : Clearly state what the case study aims to achieve. Are you solving a problem, proving a point or showcasing a success?
• Agenda : Give a quick outline of the key sections or topics you’ll cover to help the audience follow along.
• Set expectations : Let your audience know what you want them to take away from the presentation, whether it’s knowledge, inspiration or a call to action.

How to present a case study on PowerPoint and on Google Slides?

Presenting a case study on PowerPoint and Google Slides involves a structured approach for clarity and impact using presentation slides :

• Title slide : Start with a title slide that includes the name of the case study, your name and any relevant institutional affiliations.
• Introduction : Follow with a slide that outlines the problem or situation your case study addresses. Include a hook to engage the audience.
• Objectives : Clearly state the goals of the case study in a dedicated slide.
• Findings : Use charts, graphs and bullet points to present your findings succinctly.
• Analysis : Discuss what the findings mean, drawing on supporting data or secondary research as necessary.
• Conclusion : Summarize key takeaways and results.
• Q&A : End with a slide inviting questions from the audience.

What’s the role of analysis in a case study presentation?

The role of analysis in a case study presentation is to interpret the data and findings, providing context and meaning to them. 

It helps your audience understand the implications of the case study, connects the dots between the problem and the solution and may offer recommendations for future action.

Is it important to include real data and results in the presentation?

Yes, including real data and results in a case study presentation is crucial to show experience,  credibility and impact. Authentic data lends weight to your findings and conclusions, enabling the audience to trust your analysis and take your recommendations more seriously

How do I conclude a case study presentation effectively?

To conclude a case study presentation effectively, summarize the key findings, insights and recommendations in a clear and concise manner. 

End with a strong call-to-action or a thought-provoking question to leave a lasting impression on your audience.

What’s the best way to showcase data in a case study presentation ?

The best way to showcase data in a case study presentation is through visual aids like charts, graphs and infographics which make complex information easily digestible, engaging and creative. 

Don’t just report results, visualize them! This template for example lets you transform your social media case study into a captivating infographic that sparks conversation.

Choose the type of visual that best represents the data you’re showing; for example, use bar charts for comparisons or pie charts for parts of a whole. 

Ensure that the visuals are high-quality and clearly labeled, so the audience can quickly grasp the key points. 

Keep the design consistent and simple, avoiding clutter or overly complex visuals that could distract from the message.

Choose a template that perfectly suits your case study where you can utilize different visual aids for maximum impact. 

Need more inspiration on how to turn numbers into impact with the help of infographics? Our ready-to-use infographic templates take the guesswork out of creating visual impact for your case studies with just a few clicks.

Related: 10+ Case Study Infographic Templates That Convert

Congrats on mastering the art of compelling case study presentations! This guide has equipped you with all the essentials, from structure and nuances to avoiding common pitfalls. You’re ready to impress any audience, whether in the boardroom, the classroom or beyond.

And remember, you’re not alone in this journey. Venngage’s Case Study Creator is your trusty companion, ready to elevate your presentations from ordinary to extraordinary. So, let your confidence shine, leverage your newly acquired skills and prepare to deliver presentations that truly resonate.

Go forth and make a lasting impact!

Hacking the Case Interview

Case interview frameworks or consulting frameworks are arguably the most critical component of a case interview. Outstanding case frameworks   set you up for success for the case while poor frameworks make the case difficult to solve.

Struggling on how to use frameworks in your case interviews? Unsure of which frameworks to use?

Don't worry because we have you covered! We'll teach you step-by-step, how to craft tailored and unique frameworks for any case interview situation.

By the end of this article, you will learn four different strategies on how to create unique and tailored frameworks for any case interview.

Strategy #1: Creating Frameworks from Scratch

• Strategy #2: Memorizing 8 – 10 Broad Business Areas
• Strategy #3: Breaking Down Stakeholders
• Strategy #4: Breaking Down Processes
• Strategy #5: Two-Part MECE Frameworks

You will apply these strategies to learn how to create case frameworks for the six most common types of case interviews.

Profitability Framework

Market entry framework, merger and acquisition framework, pricing framework, new product framework, market sizing framework.

You will also learn six consulting frameworks that nearly every consultant knows.

Porter’s Five Forces Framework

Swot framework, 4 p’s framework, 3 c’s / business situation framework, bcg 2x2 matrix framework, mckinsey 7s framework.

If you’re looking for a step-by-step shortcut to learn case interviews quickly, enroll in our case interview course . These insider strategies from a former Bain interviewer helped 30,000+ land consulting offers while saving hundreds of hours of prep time.

What is a Case Interview Framework?

A case interview framework is simply a tool that helps you structure and break down complex problems into simpler, smaller components. Think of a framework as brainstorming different ideas and organizing them into different categories.

Let’s look at an example: Coca-Cola is a large manufacturer and retailer of non-alcoholic beverages, such as sodas, juices, sports drinks, and teas. They are looking to grow and are considering entering the beer market in the United States. Should they enter?

In order for you to decide whether Coca-Cola should enter the beer market, you likely have many different questions you’d like to ask:

• Does Coca-Cola know how to produce beer?
• Would people buy beer made by Coca-Cola?
• Where would Coca-Cola sell its beer?
• How much would it cost to enter the beer market?
• Will Coca-Cola be profitable from selling beer?
• How would Coca-Cola outcompete competitors?
• What is the size of the beer market in the United States?

This is not a very structured way of thinking through the case. The questions are listed in no particular order. Additionally, many of the questions are similar to one another and could be grouped together.

A case framework would provide a structure to organize these ideas and questions in a way that is easy to understand.

A framework for this case might look like the following.

Notice that we have simplified the list of questions we had into four main categories. These broad categories are frequently called framework “buckets.” Also notice that we have grouped similar questions together under each framework bucket.

This case framework tells us what areas we need to explore in order to make a recommendation to Coca-Cola. It also clearly shows what questions we need to answer under each area.

This is the power of a case interview framework. It simplifies a complex business problem into smaller and separate components that we can tackle one at a time.

So how do you develop a case framework? The next section will reveal four robust strategies for creating unique and tailored consulting frameworks for any case interview.

Case Interview Framework Strategies

There are four case interview framework strategies you should have in your toolkit:  

When given a case interview, you will need to decide which framework strategy you want to use. Some framework strategies will be more effective than others depending on what type of case interview you get.

Therefore, choose the case framework strategy that is easiest for you given the type of case that you get.

This case framework strategy can be used for any type of case. This is the most time-consuming strategy, but yields case frameworks that are the most tailored and unique for the given case interview.

To create a framework from scratch, ask yourself what 3 – 4 statements must be true for you to be 100% confident in your recommendation. These 3 – 4 areas will become the buckets in your framework.

Once you have your framework buckets, brainstorm a few questions for each bucket that you need answers to.

Let’s return to the Coca-Cola case example in which we are asked to determine whether or not they should enter the beer market. What 3 – 4 statements must be true for us to recommend that Coca-Cola should enter the beer market?

The four major statements that must be true are:

• The beer market is an attractive market
• Competitors in the market are weak
• Coca-Cola has the capabilities to produce outstanding beer
• Coca-Cola will be highly profitable from entering the beer market

These will be the major areas or buckets in our framework.

Next, let’s add a few bullet points under each area to add more detail to our case framework.

To determine whether the beer market is attractive, we would need to know the market size, the market growth rate, and the average profit margins in the market.

To assess whether the market is competitive, we would need to know who the competitors are, how much market share they have, and if they have any differentiation or competitive advantages.

To decide whether Coca-Cola has the capabilities to produce beer, we need to know if there are any capability gaps or if there are significant synergies that Coca-Cola can leverage.

Finally, to determine the expected profitability of entering the market, we would need to know what expected revenues are, what expected costs are, and how long it would take Coca-Cola to break even.

This gives us our case framework.

You can repeat this process for any case interview that you get to create an outstanding case framework.

Strategy #2: Memorizing 8 – 10 Broad Business Areas to Make a Framework

Creating case frameworks from scratch can be quite time-consuming. Because of this, many interview candidates make the mistake of using memorized frameworks for case interviews.

Candidates will either use a single memorized framework for every case or memorize a different framework for every type of case interview.

The issue with using memorized frameworks is that they aren’t tailored to the specific case you are solving for. When given an atypical business problem, your framework areas or buckets will not be entirely relevant.

A poor framework makes the case interview significantly more difficult to solve.

Additionally, Interviewers can easily tell that you are regurgitating memorized information and not thinking critically.

Instead of creating frameworks from scratch each time, this second case framework strategy provides a method to speed up the process while still creating frameworks that are unique and tailored to the case. Additionally, you won’t need to memorize multiple different frameworks.

First, memorize a list of 8 - 10 broad business areas, such as the following:

When given a case, mentally run through this list and pick the 3 - 5 areas that are most relevant to the case.

This will be your framework.

If the list does not give you enough areas for your framework, brainstorm and add your own ideas as areas to your framework.

Finally, add a few bullet points under each area to add more detail to your case framework.

This strategy guarantees that your framework elements are relevant to the case. It also demonstrates that you can create unique, tailored frameworks for every business problem.

Let’s return to the Coca-Cola case example in which we are asked to determine whether or not they should enter the beer market.

Running through our list of memorized framework areas, the following six areas would be relevant:

• Market attractiveness : Is the beer market attractive?
• Competitive landscape : How tough is competition?
• Company capabilities : Does Coca-Cola have the capabilities to enter the market?
• Profitability : Will Coca-Cola be profitable from entering the market?
• Risks : What are the risks of entering the market?
• Strategic alternatives : Are there other more attractive markets Coca-Cola should enter?

You can pick 3 – 5 of these areas as the basis for your framework.

This strategy is a shortcut for creating unique and tailored frameworks for every business problem. Even if you and a friend used this same strategy, you both may end up with different frameworks.

That is completely fine. As long as the buckets in your framework are major areas and are relevant to the case, your case framework will be significantly better than most candidates’ frameworks.

You do not need to develop a framework entirely from scratch every time to create outstanding case frameworks. This case framework strategy can be applied to over 90% of case interviews.

For the remaining 10% of case interviews, you will need to learn and use the next two case interview framework strategies.

Strategy #3: Breaking Down Stakeholders to Make a Framework

The first two case framework strategies can be applied to over 90% of cases. However, some cases may require you to identify and focus on various stakeholders that are involved in running or operating a business.

For these cases, the primary areas of your case framework will be these major stakeholders.

Let’s take a look at an example: Your client is a non-profit blood bank. They have volunteer nurses that go to schools and companies to collect blood from donors. They then sell this blood to hospitals, which use this blood for emergency situations when a blood transfusion is required. Currently, Hearts4Lives is not profitable because they are not able to collect enough blood to sell to their hospital partners. What can they do to fix this?

This case involves many different stakeholders:

• Volunteer nurses
• Blood donors
• Schools and companies

For cases in which many different stakeholders are involved, it will be useful to look at each stakeholder and determine what each could do to address the problem.

One potential framework could look like the following:

Strategy #4: Breaking Down Processes to make a Framework

Similar to the previous case framework strategy, some cases may require you to focus on improving or optimizing a particular process.

For these cases, the primary areas of your case framework will be each major step of the process.

Let’s take a look at an example: Your client is a waste disposal company that manages a fleet of drivers and garbage trucks that go to residential homes, collect garbage, and then dump the garbage in city landfills. They have an obligation to collect each home’s garbage once a week. Recently, they have been failing to meet this requirement and are backed up with garbage disposal requests. What is causing this issue and what should they do to fix it?

For cases involving processes and efficiencies, it can be helpful to look at the different components or steps in the process.

We can think about the process of collecting and disposing of garbage in the following steps:

• Get in a garbage truck
• Drive along a designated route
• Collect garbage at each stop
• Dispose of the garbage in the landfill

Using these steps as the primary areas of our framework, we can create the following case framework:

Once you have systematically listed all of the steps in a process, you can identify the pain points or bottlenecks that are causing the issue and determine ways to improve the process.

Strategy #5: Two-part MECE Frameworks

An easy way to make a 100% MECE framework is to use a two-part MECE framework. For the first step, start with a X and Not X framework. Some examples include:

• Internal / external
• Short-term / long-term
• Economic / non-economic
• Quantitative / qualitative
• Direct / indirect
• Supply-side / demand-side
• Upside / downside
• Benefits / cost

There are probably hundreds more frameworks that follow this pattern.

These frameworks are by definition 100% MECE. Since all of these frameworks are X or Not-X, they are mutually exclusive. There is no redundancy or overlap between X and Not-X.

Together, X and Not-X are also completely exhaustive. They cover the universe of all ideas and possibilities.

The X and Not-X framework by itself is good enough for a lot of the questions you could get asked in a case interview.

If you’re asked to brainstorm ways to decrease costs, you can create a framework consisting of decreasing variable costs and decreasing non-variable costs, also known as fixed costs.

If you’re asked to brainstorm barriers to entry, you can create a framework consisting of economic barriers to entry, such as cash and equipment, and non-economic barriers to entry, such as brand name or distribution channels.

However, to take your framework to the next level and truly impress your interviewer, we have the option of doing step two.

Step two involves adding another layer of X and Not X into your framework. What do we mean by this?

Let’s say you are trying to help a city decide whether they should host the upcoming summer Olympics. You start off with a framework consisting of benefits and costs. You can take this framework to the next level by adding another layer, such as adding in short-term and long-term.

With this additional layer, your framework now has four categories: short-term benefits, long-term benefits, short-term costs, and long-term costs. This is a 100% MECE framework that enables you to think through all possible considerations in deciding whether a city should host the Olympics.

Let’s look at another example. Suppose you are trying to figure out how to reduce a company’s costs. You start with a framework consisting of variable costs and fixed costs. You can take this framework to the next level by adding another layer, such as direct and indirect.

With this additional layer, your framework now has four categories: ways to directly reduce variable costs, ways to indirectly reduce variable costs, ways to directly reduce fixed costs, and ways to indirectly reduce fixed costs. This is another 100% MECE framework.

Case Frameworks: The 6 Most Common Frameworks

There are six common case frameworks in consulting case interviews.  

Profitability frameworks are the most common types of frameworks you’ll likely use in consulting first round interviews.

A profitability case might look like this: “An electric car manufacturer has recently been experiencing a decline in profits. What should they do?”

There are two steps to solving a profitability case.

First, you need to understand quantitatively, what is the driver causing the decline in profits?

You should know the following basic profit formulas.

Is the decline in profitability due to a decline in revenue, an increase in costs, or both?

On the revenue side, what is causing the decline? Is it from a decrease in quantity of units sold? If so, is the decrease concentrated in a particular product line, geography, or customer segment?

Or is the decline due to a decrease in price? Are we selling products at a lower price? Is there a sales mix change? In other words, are we selling more low-priced products and fewer high-priced products?

On the cost side, what is causing the increase in costs? Is it from an increase in variable costs? If so, which cost elements have gone up?

Or is the increase in costs due to an increase in fixed costs? If so, which fixed costs have gone up?

Next, you need to understand qualitatively, what factors are driving the decline in profitability that you identified in the previous step.

Looking at customers, have customer needs or preferences changed? Have their purchasing habits or behaviors changed? Have their perceptions of the company changed?

Looking at competitors, have new players entered the market? Have existing competitors made any recent strategic moves? Are competitors also experiencing a decline in profitability?

Looking at the market, are there any market trends that we should be aware of? For example, are there new technology or regulatory changes? How do these trends impact profitability?

Putting all of this together, we get the following profitability framework.

Once you have gone through this profitability framework and understand both quantitatively what is causing the decline in profits and qualitatively why this is happening, you can begin brainstorming ideas to address the profitability issue.

Among the ideas that you brainstorm, you can prioritize which recommendations to focus on based on the level of impact and ease of implementation.

See the video below for an example of how to solve a profitability case using this profitability framework.

Market entry frameworks are the second most common types of frameworks you’ll likely use in consulting first round interviews.

A market entry case might look like this: “Coca-Cola is considering entering the beer market in the United States. Should they enter?”

To create a market entry framework, there are typically four statements that need to be true in order for you to recommend entering the market:

• The market is attractive
• Competition is weak
• The company has the capabilities to enter
• The company will be highly profitable from entering the market

These statements form the foundation of our market entry framework.

Note the logical order of the buckets in the framework.

We first want to determine whether the market is attractive. Then, we need to check if competition is weak and if there is an opportunity to capture meaningful market share.

If these two conditions are true, then we need to confirm that the company actually has the capabilities to enter the market.

Finally, even if the company has the capabilities to enter the market, we need to verify that they will be profitable from entering.

This is a logical progression that your market entry framework will take you through to develop a recommendation for market entry cases.

Merger and acquisition frameworks are also common frameworks you’ll use in consulting interviews.

There are two common business situations.

The first situation is a company looking to acquire another company in order to access a new market, access new customers, or to grow its revenues and profits.

Another situation is a private equity company looking to acquire a company as an investment. Their goal is to then grow the business using their operational expertise and then sell the company years later for a high return on investment.

In either of these situations, mergers and acquisition cases typically involve acquiring an attractive, successful company.

It is rare to get a case in which a company or private equity firm is looking to acquire a poorly performing company to purchase at a discount. Nevertheless, you can always clarify the goal of the merger or acquisition with the interviewer before beginning the case.

In order to recommend making an acquisition, four statements need to be true.  

• The market that the acquisition target is in is attractive
• The acquisition target is an attractive company
• The acquisition generates meaningful synergies
• The acquisition target is at a great price and will generate high returns on investment

These statements become the basis of our merger and acquisition framework.

Synergies is an area that should absolutely be included in any merger or acquisition framework. A merger or acquisition can lead to revenue synergies and cost synergies.

Revenue synergies include:

• Having access to new customer segments
• Having access to new markets
• Having access to new distribution channels
• Cross-selling opportunities
• Up-selling opportunities

Cost synergies include:

• Eliminating cost redundancies
• Consolidating functions or groups
• Increasing buying power with suppliers, manufacturers, distributors, or retailers

Pricing frameworks are used in cases involving the pricing of a product or service. To develop a pricing framework, you should be familiar with the three different ways to price a product or service.

• Pricing based on costs : set a price by applying a profit margin on the total costs to produce or deliver the product or service
• Pricing based on competition : set a price based on what competitors are charging for products similar to yours
• Pricing based on value added : set a price by quantifying the benefits that the product provides customers

Your answer to pricing cases will likely involve a mix of all three of these pricing strategies.

Your pricing framework will look something like the following.

Pricing based on costs will determine the minimum price you can realistically set. Pricing based on value added will determine the maximum possible price. Pricing based on competition will determine which price in between these two price points you should set.

In order to get customers to purchase your product, the difference between your price point and the customer’s maximum willingness to pay must be greater than or equal to the difference between your competitor’s price point and the customer’s maximum willingness to pay for their product.

New product frameworks are used to help a company decide whether or not to launch a product or service.

New product frameworks share many similarities with market entry frameworks. In order to recommend launching a new product, the following statements would need to be true:

• The product targets an attractive market segment
• The product meets customer needs and is superior to competitor products
• The company has the capabilities to successfully launch the product
• Launching the product will be highly profitable

Expanding on these areas, your new product framework could look like the following:

A comprehensive guide to market sizing questions and market sizing frameworks can be found in our comprehensive market sizing article. You can also watch the video below:

As a summary, market sizing or estimation questions ask you to determine the size of a particular market or to estimate a particular figure.

There are two different market sizing frameworks or approaches:

• Top-down approach : start with a large number and then refine and break down the number until you get your answer
• Bottom-up approach : start with a small number and then build up and increase the number until you get your answer

To create your market sizing framework, simply write out in bullet points, the exact steps you would take to calculate the requested market size or estimation figure.

Consulting Frameworks Every Consultant Knows

There are six consulting frameworks that nearly every consultant knows.

I would not recommend using these exact frameworks during a case interview because the interviewer may think you are just regurgitating memorized information instead of thinking critically about the case.

Instead use the four framework strategies that we covered earlier in this article to create tailored and unique frameworks for each case.

Nevertheless, it is helpful to review these common consulting frameworks in order to understand the fundamental concepts and business principles behind them.

Porter’s Five Forces framework was developed by Harvard Business School professor Michael Porter. This framework is used to analyze the attractiveness of a particular industry.

There are five forces that determine whether an industry is attractive or unattractive.

Competitive rivalry:  How competitive is the industry?

The more competitive an industry is in terms of number and strength of competitors, the less attractive the industry is. The less competitive an industry is, the more attractive the industry is.

Supplier power:  How much power do suppliers have?

Suppliers are companies that provide the raw materials for your company to produce goods or services. The fewer suppliers there are, the more bargaining power suppliers have in setting prices. The more suppliers there are, the weaker bargaining power suppliers have in setting prices.

Therefore, high supplier power makes the industry less attractive while low supplier power makes the industry more attractive.   

Buyer power:  How much power do buyers have?

Buyers are customers or companies that purchase your company’s product. The more buyers there are, the weaker bargaining power buyers have in setting prices. The fewer buyers there are, the more bargaining power buyers have in setting prices.

Therefore, high buyer power makes the industry less attractive while low buyer power makes the industry more attractive.   

Threat of substitution:  How difficult is it for customers to find and use substitutes over your product?

The availability of many substitutes makes the industry less attractive while a lack of substitutes makes the industry more attractive

Threat of new entry:  How difficult is it for new players to enter the market?

If barriers to entry are high, then it is difficult for new players to enter the market and it is easier for existing players to maintain their market share.

If barriers to entry are low, then it is easy for new players to enter the market and more difficult for existing players to maintain their market share.

A low threat of new entrants makes the market more attractive while a high threat of new entrants makes the market less attractive.

A SWOT framework is used to assess a company’s strategic position. SWOT stands for strengths, weaknesses, opportunities, and threats.

Strengths : What does the company do well? What qualities separate them from competitors?

Weaknesses : What does the company do poorly? What are the things that competitors do better?

Opportunities : Where are the company’s opportunities for growth or improvement?

Threats : Who are the most threatening competitors? What are the major risks to the company’s business?

The 4 P’s framework is used to develop a marketing strategy for a product. The 4 P’s in this framework are: product, place, promotion, and price.

Product : If there are multiple products or different versions of a product, you will need to decide which product to market. To do this, you will need to fully understand the benefits and points of differentiation of each product.

Select the product that best fits customer needs for the customer segment you are focusing on.

Place : You will need to decide where the product will be sold to customers. Different customer segments have different purchasing habits and behaviors. Therefore, some distribution channels will be more effective than others.

Should the product be sold directly to the customer online? Should the product be sold in the company’s stores? Should the product be sold through retail partners instead?

Promotion : You will need to decide how to spread information about the product to customers. Different customer segments have different media consumption habits and preferences. Therefore, some promotional strategies will be more effective than others.

Promotional techniques and strategies include advertising, social media marketing, email marketing, search engine marketing, video marketing, and public relations. Select the strategies and techniques that will be the most effective.

Price : You will need to decide how to price the product. Pricing is important because it determines the profits and the quantity of units sold. Pricing can also communicate information on the quality or value of the product.

If you price the product too high, you may be pricing the product above your customer segment’s willingness to pay. This would lead to lost sales.

If you price the product too low, you may be losing potential profit from customers who were willing to pay a higher price. You may also be losing profits from customers who perceive the product as low-quality due to a low price point.

In deciding on a price, you can consider the costs to produce the product, the prices of other similar products, and the value that you are providing to customers.

The 3 C’s framework is used to develop a business strategy for a company. 3 C’s stands for customers, competition, and company.

The business situation framework was developed by a former McKinsey consultant, Victor Cheng, who added a fourth component to this framework, product.

Both of these frameworks are used to develop a business strategy for a company in a variety of situations, such as market entry, new product launch, and acquisition.

There is another similar framework called the 4C framework that expands upon the 3 C's. The 4C framework stands for customer, competition, capabilities, and cost.

The BCG 2x2 Matrix Framework was developed by BCG founder Bruce Hendersen. It is used to examine all of the different businesses of a company to determine which businesses the company should invest in and focus on.

The BCG 2x2 Matrix has two different dimensions:

• Market growth : How quickly is the market growing?
• Relative market share : How much market share does the company have compared to competitors?

Each business of the company can be assessed on these two dimensions on a scale of low to high. This is what creates the 2x2 Matrix because it creates four different quadrants.

Each quadrant has a recommended strategy.

• Stars : These are businesses that have high market growth rate and high relative market share. These businesses should be heavily invested in so they can continue to grow.
• Cows :   These are businesses that have low market growth rate, but high relative market share. These businesses should be maintained since they are stable, profitable businesses.
• Dogs :   These are businesses that have low market growth rate and low relative market share. These businesses should not be invested in and should possibly even be divested to free up cash for other businesses.
• Unknown : These are businesses that have high market growth rate and low relative market share. The strategy for these businesses is not clear. With enough investment, these businesses could become stars. However, these businesses could also become dogs if the market growth slows or declines.

The McKinsey 7S Framework was developed by two former McKinsey consultants, Tom Peters and Robert Waterman. The 7S Framework identifies seven elements that a company needs to align on in order to be successful.

These elements are:

• Strategy : The company’s plan to grow and outcompete competitors
• Structure : The organization of the company
• Systems : The company’s daily activities and processes
• Shared values : The core beliefs, values, or mission of the company
• Style : The style of leadership or management used
• Staff : The employees that are hired
• Skills : The capabilities of the company’s employees

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100 Best Case Study Questions for Your Next Customer Spotlight

Published: November 29, 2022

Case studies and testimonials are helpful to have in your arsenal. But to build an effective library, you need to ask the right case study questions. You also need to know how to write a case study .

Case studies are customers' stories that your sales team can use to share relevant content with prospects . Not only that, but case studies help you earn a prospect's trust, show them what life would be like as your customer, and validate that your product or service works for your clients.

Before you start building your library of case studies, check out our list of 100 case study questions to ask your clients. With this helpful guide, you'll have the know-how to build your narrative using the " Problem-Agitate-Solve " Method.

What makes a good case study questionnaire?

The ultimate list of case study questions, how to ask your customer for a case study, creating an effective case study.

Certain key elements make up a good case study questionnaire.

A questionnaire should never feel like an interrogation. Instead, aim to structure your case study questions like a conversation. Some of the essential things that your questionnaire should cover include:

• The problem faced by the client before choosing your organization.
• Why they chose your company.
• How your product solved the problem clients faced.
• The measurable results of the service provided.
• Data and metrics that prove the success of your service or product, if possible.

You can adapt these considerations based on how your customers use your product and the specific answers or quotes that you want to receive.

What makes a good case study question?

A good case study question delivers a powerful message to leads in the decision stage of your prospective buyer's journey.

Since your client has agreed to participate in a case study, they're likely enthusiastic about the service you provide. Thus, a good case study question hands the reins over to the client and opens a conversation.

Try asking open-ended questions to encourage your client to talk about the excellent service or product you provide.

Free Case Study Templates

Tell us about yourself to access the templates..

Categories for the Best Case Study Questions

• Case study questions about the customer's business
• Case study questions about the environment before the purchase
• Case study questions about the decision process
• Case study questions about the customer's business case
• Case study questions about the buying team and internal advocates
• Case study questions about customer success
• Case study questions about product feedback
• Case study questions about willingness to make referrals
• Case study question to prompt quote-worthy feedback
• Case study questions about the customers' future goals

Showcase your company's success using these three free case study templates.

• Data-Driven Case Study Template
• Product-Specific Case Study Template
• General Case Study Template

You're all set!

Click this link to access this resource at any time.

Case Study Interview Questions About the Customer's Business

Knowing the customer's business is an excellent way of setting the tone for a case study.

Use these questions to get some background information about the company and its business goals. This information can be used to introduce the business at the beginning of the case study — plus, future prospects might resonate with their stories and become leads for you.

• Would you give me a quick overview of [company]? This is an opportunity for the client to describe their business in their own words. You'll get useful background information and it's an easy prompt to get the client talking.
• Can you describe your role? This will give you a better idea of the responsibilities they are subject to.
• How do your role and team fit into the company and its goals? Knowing how the team functions to achieve company goals will help you formulate how your solution involves all stakeholders.
• How long has your company been in business? Getting this information will help the reader gauge if pain points are specific to a startup or new company vs. a veteran company.
• How many employees do you have? Another great descriptor for readers to have. They can compare the featured company size with their own.
• Is your company revenue available? If so, what is it? This will give your readers background information on the featured company's gross sales.
• Who is your target customer? Knowing who the target audience is will help you provide a better overview of their market for your case study readers.
• How does our product help your team or company achieve its objectives? This is one of the most important questions because it is the basis of the case study. Get specifics on how your product provided a solution for your client. You want to be able to say "X company implemented our solution and achieved Y. "
• How are our companies aligned (mission, strategy, culture, etc.)? If any attributes of your company's mission or culture appealed to the client, call it out.

How many people are on your team? What are their roles? This will help describe key players within the organization and their impact on the implementation of your solution.

Case Study Interview Questions About the Environment Before the Purchase

A good case study is designed to build trust. Ask clients to describe the tools and processes they used before your product or service. These kinds of case study questions will highlight the business' need they had to fulfill and appeal to future clients.

• What was your team's process prior to using our product? This will give the reader a baseline to compare the results for your company's product.
• Were there any costs associated with the process prior to using our product? Was it more expensive? Was it worth the cost? How did the product affect the client's bottom line? This will be a useful metric to disclose if your company saved the client money or was more cost-efficient.
• What were the major pain points of your process prior to using our product? Describe these obstacles in detail. You want the reader to get as much information on the problem as possible as it sets up the reasoning for why your company's solution was implemented.
• Did our product replace a similar tool or is this the first time your team is using a product like this? Were they using a similar product? If so, having this information may give readers a reason to choose your brand over the competition.
• What other challenges were you and your team experiencing prior to using our product? The more details you can give readers regarding the client's struggles, the better. You want to paint a full picture of the challenges the client faced and how your company resolved them.
• Were there any concerns about how your customers would be impacted by using our product? Getting answers to this question will illustrate to readers the client's concerns about switching to your service. Your readers may have similar concerns and reading how your client worked through this process will be helpful.
• Why didn't you buy our product or a similar product earlier? Have the client describe any hesitations they had using your product. Their concerns may be relatable to potential leads.
• Were there any "dealbreakers" involved in your decision to become a customer? Describing how your company was able to provide a solution that worked within those parameters demonstrates how accommodating your brand is and how you put the customer first. It's also great to illustrate any unique challenges the client had. This better explains their situation to the reader.
• Did you have to make any changes you weren't anticipating once you became a customer? Readers of your case study can learn how switching to your product came with some unexpected changes (good or bad) and how they navigated them. If you helped your client with troubleshooting, ask them to explain that here.

How has your perception of the product changed since you've become a customer? Get the interviewee to describe how your product changed how they do business. This includes how your product accomplished what they previously thought was impossible.

Case Study Interview Questions About the Decision Process

Readers of the case study will be interested in which factors influenced the decision-making process for the client. If they can relate to that process, there's a bigger chance they'll buy your product.

The answers to these questions will help potential customers through their decision-making process.

• How did you hear about our product? If the client chose to work with you based on a recommendation or another positive case study, include that. It will demonstrate that you are a trusted brand with an established reputation for delivering results.
• How long had you been looking for a solution to this problem? This will add to the reader's understanding of how these particular challenges impacted the company before choosing your product.
• Were you comparing alternative solutions? Which ones? This will demonstrate to readers that the client explored other options before choosing your company.
• Would you describe a few of the reasons you decided to buy our product? Ask the interviewee to describe why they chose your product over the competition and any benefits your company offered that made you stand out.
• What were the criteria you used when deciding to buy our product? This will give readers more background insight into the factors that impacted their decision-making process.
• Were there any high-level initiatives or goals that prompted the decision to buy? For example, was this decision motivated by a company-wide vision? Prompt your clients to discuss what lead to the decision to work with you and how you're the obvious choice.
• What was the buying process like? Did you notice anything exceptional or any points of friction? This is an opportunity for the client to comment on how seamless and easy you make the buying process. Get them to describe what went well from start to finish.
• How would you have changed the buying process, if at all? This is an opportunity for you to fine-tune your process to accommodate future buyers.
• Who on your team was involved in the buying process? This will give readers more background on the key players involved from executives to project managers. With this information, readers can see who they may potentially need to involve in the decision-making process on their teams.

Case Study Interview Questions About the Customer's Business Case

Your case study questions should ask about your product or solution's impact on the customer's employees, teams, metrics, and goals. These questions allow the client to praise the value of your service and tell others exactly what benefits they derived from it.

When readers review your product or service's impact on the client, it enforces the belief that the case study is credible.

• How long have you been using our product? This will help readers gauge how long it took to see results and your overall satisfaction with the product or service.
• How many different people at your company use our product? This will help readers gauge how they can adapt the product to their teams if similar in size.
• Are there multiple departments or teams using our product? This will demonstrate how great of an impact your product has made across departments.
• How do you and your team currently use the product? What types of goals or tasks are you using the product to accomplish? Get specifics on how the product actively helps the client achieve their goals.
• If other teams or departments are using our product, do you know how they're using it? With this information, leads can picture how they can use your product across their teams and how it may improve their workflow and metrics.
• What was the most obvious advantage you felt our product offered during the sales process? The interviewee should explain the benefits they've gained from using your product or service. This is important for convincing other leads you are better than the competition.
• Were there any other advantages you discovered after using the product more regularly? Your interviewee may have experienced some additional benefits from using your product. Have them describe in detail what these advantages are and how they've helped the company improve.
• Are there any metrics or KPIs you track with our product? What are they? The more numbers and data the client can provide, the better.
• Were you tracking any metrics prior to using our product? What were they? This will allow readers to get a clear, before-and-after comparison of using your product.
• How has our product impacted your core metrics? This is an opportunity for your clients to drive home how your product assisted them in hitting their metrics and goals.

Case Study Interview Questions About the Buying Team and Internal Advocates

See if there are any individuals at the customer's company who are advocates for your product.

• Are there any additional team members you consider to be advocates for our product? For example, does anyone stick out as a "power user" or product expert on your team? You may want to interview and include these power users in your case study as well. Consider asking them for tips on using your service or product.
• Is there anyone else on your team you think we should talk to? Again, the more people can share their experience using your product, the better.
• Are there any team members who you think might not be the biggest fans of our product or who might need more training? Providing extra support to those struggling with your product may improve their user experience and turn into an opportunity to not only learn about their obstacles but turn them into a product fan
• Would you share some details about how your team implemented our product? Get as much information as possible about the rollout. Hopefully, they'll gush about how seamless the process was.
• Who from your company was involved in implementing our product? This will give readers more insight into who needs to be involved for a successful rollout of their own.
• Were there any internal risks or additional costs involved with implementing our product? If so, how did you address them? This will give insight into the client's process and rollout and this case study question will likely provide tips on what potential leads should be on the lookout for.
• Is there a training process in place for your team's use of our product? If so, what does it look like? If your company provided support and training to the client, have them describe that experience.
• About how long does it take a new team member to get up to speed with our product? This will help leads determine how much time it will take to onboard an employee to your using your product. If a new user can quickly get started seamlessly, it bodes well for you.
• What was your main concern about rolling this product out to your company? Describing their challenges in detail will provide readers with useful insight.

Case Study Interview Questions About Customer Success

Has the customer found success with your product? Ask these questions to learn more.

• By using our product can you measure any reduced costs? If it has, you'll want to emphasize those savings in your case study.
• By using our product can you measure any improvements in productivity or time savings? Any metrics or specific stories your interviewee can provide will help demonstrate the value of your product.
• By using our product can you measure any increases in revenue or growth? Again, say it with numbers and data whenever possible.
• Are you likely to recommend our product to a friend or colleague? Recommendations from existing customers are some of the best marketing you can get.
• How has our product impacted your success? Your team's success? Getting the interviewee to describe how your product played an integral role in solving their challenges will show leads that they can also have success using your product.
• In the beginning, you had XYZ concerns; how do you feel about them now? Let them explain how working with your company eliminated those concerns.
• I noticed your team is currently doing XYZ with our product. Tell me more about how that helps your business. Illustrate to your readers how current customers are using your product to solve additional challenges. It will convey how versatile your product is.
• Have you thought about using our product for a new use case with your team or at your company? The more examples of use cases the client can provide, the better.
• How do you measure the value our product provides? Have the interviewee illustrate what metrics they use to gauge the product's success and how. Data is helpful, but you should go beyond the numbers. Maybe your product improved company morale and how teams work together.

Case Study Interview Questions About Product Feedback

Ask the customer if they'd recommend your product to others. A strong recommendation will help potential clients be more open to purchasing your product.

• How do other companies in this industry solve the problems you had before you purchased our product? This will give you insight into how other companies may be functioning without your product and how you can assist them.
• Have you ever talked about our product to any of your clients or peers? What did you say? This can provide you with more leads and a chance to get a referral.
• Why would you recommend our product to a friend or client? Be sure they pinpoint which features they would highlight in a recommendation.
• Can you think of any use cases your customers might have for our product? Similar industries may have similar issues that need solutions. Your interviewee may be able to provide a use case you haven't come up with.
• What is your advice for other teams or companies who are tackling problems similar to those you had before you purchased our product? This is another opportunity for your client to talk up your product or service.
• Do you know someone in X industry who has similar problems to the ones you had prior to using our product? The client can make an introduction so you can interview them about their experience as well.
• I noticed you work with Company Y. Do you know if they are having any pain points with these processes? This will help you learn how your product has impacted your client's customers and gain insight into what can be improved.
• Does your company participate in any partner or referral programs? Having a strong referral program will help you increase leads and improve customer retention.
• Can I send you a referral kit as a thank-you for making a referral and give you the tools to refer someone to us? This is a great strategy to request a referral while rewarding your existing customers.
• Are you interested in working with us to produce additional marketing content? The more opportunities you can showcase happy customers, the better.

Case Study Interview Questions About Willingness to Make Referrals

• How likely are you to recommend our product to a friend or client? Ideally, they would definitely refer your product to someone they know.
• Can you think of any use cases your customers might have for our product? Again, your interviewee is a great source for more leads. Similar industries may have similar issues that need solutions. They may be able to provide a use case you haven't come up with.
• I noticed you work with Company Y; do you know if they are having any pain points with these processes? This will help you learn how your product has impacted your client's customers and gain insight into what can be improved.

Case Study Interview Questions to Prompt Quote-Worthy Feedback

Enhance your case study with quotable soundbites from the customer. By asking these questions, prospects have more insight into other clients and their success with your product — which helps build trust.

• How would you describe your process in one sentence prior to using our product? Ideally, this sentence would quickly and descriptively sum up the most prominent pain point or challenge with the previous process.
• What is your advice to others who might be considering our product? Readers can learn from your customer's experience.
• What would your team's workflow or process be like without our product? This will drive home the value your product provides and how essential it is to their business.
• Do you think the investment in our product was worthwhile? Why? Have your customer make the case for the value you provide.
• What would you say if we told you our product would soon be unavailable? What would this mean to you? Again, this illustrates how integral your product is to their business.
• How would you describe our product if you were explaining it to a friend? Your customers can often distill the value of your product to their friends better than you can.
• What do you love about your job? Your company? This gives the reader more background on your customer and their industry.
• What was the worst part of your process before you started using our product? Ideally, they'd reiterate how your product helped solve this challenge.
• What do you love about our product? Another great way to get the customer's opinion about what makes your product worth it.
• Why do you do business with us? Hopefully, your interviewee will share how wonderful your business relationship is.

Case Study Interview Questions About the Customers' Future Goals

Ask the customer about their goals, challenges, and plans for the future. This will provide insight into how a business can grow with your product.

• What are the biggest challenges on the horizon for your industry? Chances are potential leads within the same industry will have similar challenges.
• What are your goals for the next three months? Knowing their short-term goals will enable your company to get some quick wins for the client.
• How would you like to use our product to meet those challenges and goals? This will help potential leads understand that your product can help their business as they scale and grow.
• Is there anything we can do to help you and your team meet your goals? If you haven't covered it already, this will allow your interviewee to express how you can better assist them.
• Do you think you will buy more, less, or about the same amount of our product next year? This can help you gauge how your product is used and why.
• What are the growth plans for your company this year? Your team? This will help you gain insight into how your product can help them achieve future goals.
• How can we help you meet your long-term goals? Getting specifics on the needs of your clients will help you create a unique solution designed for their needs.
• What is the long-term impact of using our product? Get their feedback on how your product has created a lasting impact.
• Are there any initiatives that you personally would like to achieve that our product or team can help with? Again, you want to continue to provide products that help your customers excel.
• What will you need from us in the future? This will help you anticipate the customer's business needs.
• Is there anything we can do to improve our product or process for working together in the future? The more feedback you can get about what is and isn't working, the better.

Before you can start putting together your case study, you need to ask your customer's permission.

If you have a customer who's seen success with your product, reach out to them. Use this template to get started:

Thank you & quick request

Hi [customer name],

Thanks again for your business — working with you to [solve X, launch Y, take advantage of Z opportunity] has been extremely rewarding, and I'm looking forward to more collaboration in the future.

[Name of your company] is building a library of case studies to include on our site. We're looking for successful companies using [product] to solve interesting challenges, and your team immediately came to mind. Are you open to [customer company name] being featured?

It should be a lightweight process — [I, a product marketer] will ask you roughly [10, 15, 20] questions via email or phone about your experience and results. This case study will include a blurb about your company and a link to your homepage (which hopefully will make your SEO team happy!)

In any case, thank you again for the chance to work with you, and I hope you have a great week.

[Your name]

If one of your customers has recently passed along some praise (to you, their account manager, your boss; on an online forum; to another potential customer; etc.), then send them a version of this email:

Hey [customer name],

Thanks for the great feedback — I'm really glad to hear [product] is working well for you and that [customer company name] is getting the results you're looking for.

My team is actually in the process of building out our library of case studies, and I'd love to include your story. Happy to provide more details if you're potentially interested.

Either way, thank you again, and I look forward to getting more updates on your progress.

You can also find potential case study customers by usage or product data. For instance, maybe you see a company you sold to 10 months ago just bought eight more seats or upgraded to a new tier. Clearly, they're happy with the solution. Try this template:

I saw you just [invested in our X product; added Y more users; achieved Z product milestone]. Congratulations! I'd love to share your story using [product] with the world -- I think it's a great example of how our product + a dedicated team and a good strategy can achieve awesome results.

Are you open to being featured? If so, I'll send along more details.

Case Study Benefits

• Case studies are a form of customer advocacy.
• Case studies provide a joint-promotion opportunity.
• Case studies are easily sharable.
• Case studies build rapport with your customers.
• Case studies are less opinionated than customer reviews.

1. Case studies are a form of customer advocacy.

If you haven't noticed, customers aren't always quick to trust a brand's advertisements and sales strategies.

With every other brand claiming to be the best in the business, it's hard to sort exaggeration from reality.

This is the most important reason why case studies are effective. They are testimonials from your customers of your service. If someone is considering your business, a case study is a much more convincing piece of marketing or sales material than traditional advertising.

2. Case studies provide a joint-promotion opportunity.

Your business isn't the only one that benefits from a case study. Customers participating in case studies benefit, too.

Think about it. Case studies are free advertisements for your customers, not to mention the SEO factor, too. While they're not promoting their products or services, they're still getting the word out about their business. And, the case study highlights how successful their business is — showing interested leads that they're on the up and up.

3. Case studies are easily sharable.

No matter your role on the sales team, case studies are great to have on hand. You can easily share them with leads, prospects, and clients.

Whether you embed them on your website or save them as a PDF, you can simply send a link to share your case study with others. They can share that link with their peers and colleagues, and so on.

Case studies can also be useful during a sales pitch. In sales, timing is everything. If a customer is explaining a problem that was solved and discussed in your case study, you can quickly find the document and share it with them.

4. Case studies build rapport with your customers.

While case studies are very useful, they do require some back and forth with your customers to obtain the exact feedback you're looking for.

Even though time is involved, the good news is this builds rapport with your most loyal customers. You get to know them on a personal level, and they'll become more than just your most valuable clients.

And, the better the rapport you have with them, the more likely they'll be to recommend your business, products, or services to others.

5. Case studies are less opinionated than customer reviews.

Data is the difference between a case study and a review. Customer reviews are typically based on the customer's opinion of your brand. While they might write a glowing review, it's completely subjective and there's rarely empirical evidence supporting their claim.

Case studies, on the other hand, are more data-driven. While they'll still talk about how great your brand is, they support this claim with quantitative data that's relevant to the reader. It's hard to argue with data.

An effective case study must be genuine and credible. Your case study should explain why certain customers are the right fit for your business and how your company can help meet their specific needs. That way, someone in a similar situation can use your case study as a testimonial for why they should choose your business.

Use the case study questions above to create an ideal customer case study questionnaire. By asking your customers the right questions, you can obtain valuable feedback that can be shared with potential leads and convert them into loyal customers.

Editor’s Note: This article was originally published in June 2021 and has been updated for comprehensiveness.

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How to write a case study — examples, templates, and tools

It’s a marketer’s job to communicate the effectiveness of a product or service to potential and current customers to convince them to buy and keep business moving. One of the best methods for doing this is to share success stories that are relatable to prospects and customers based on their pain points, experiences, and overall needs.

That’s where case studies come in. Case studies are an essential part of a content marketing plan. These in-depth stories of customer experiences are some of the most effective at demonstrating the value of a product or service. Yet many marketers don’t use them, whether because of their regimented formats or the process of customer involvement and approval.

A case study is a powerful tool for showcasing your hard work and the success your customer achieved. But writing a great case study can be difficult if you’ve never done it before or if it’s been a while. This guide will show you how to write an effective case study and provide real-world examples and templates that will keep readers engaged and support your business.

In this article, you’ll learn:

What is a case study?

How to write a case study, case study templates, case study examples, case study tools.

A case study is the detailed story of a customer’s experience with a product or service that demonstrates their success and often includes measurable outcomes. Case studies are used in a range of fields and for various reasons, from business to academic research. They’re especially impactful in marketing as brands work to convince and convert consumers with relatable, real-world stories of actual customer experiences.

The best case studies tell the story of a customer’s success, including the steps they took, the results they achieved, and the support they received from a brand along the way. To write a great case study, you need to:

• Celebrate the customer and make them — not a product or service — the star of the story.
• Craft the story with specific audiences or target segments in mind so that the story of one customer will be viewed as relatable and actionable for another customer.
• Write copy that is easy to read and engaging so that readers will gain the insights and messages intended.
• Follow a standardized format that includes all of the essentials a potential customer would find interesting and useful.
• Support all of the claims for success made in the story with data in the forms of hard numbers and customer statements.

Case studies are a type of review but more in depth, aiming to show — rather than just tell — the positive experiences that customers have with a brand. Notably, 89% of consumers read reviews before deciding to buy, and 79% view case study content as part of their purchasing process. When it comes to B2B sales, 52% of buyers rank case studies as an important part of their evaluation process.

Telling a brand story through the experience of a tried-and-true customer matters. The story is relatable to potential new customers as they imagine themselves in the shoes of the company or individual featured in the case study. Showcasing previous customers can help new ones see themselves engaging with your brand in the ways that are most meaningful to them.

Besides sharing the perspective of another customer, case studies stand out from other content marketing forms because they are based on evidence. Whether pulling from client testimonials or data-driven results, case studies tend to have more impact on new business because the story contains information that is both objective (data) and subjective (customer experience) — and the brand doesn’t sound too self-promotional.

Case studies are unique in that there’s a fairly standardized format for telling a customer’s story. But that doesn’t mean there isn’t room for creativity. It’s all about making sure that teams are clear on the goals for the case study — along with strategies for supporting content and channels — and understanding how the story fits within the framework of the company’s overall marketing goals.

Here are the basic steps to writing a good case study.

1. Identify your goal

Start by defining exactly who your case study will be designed to help. Case studies are about specific instances where a company works with a customer to achieve a goal. Identify which customers are likely to have these goals, as well as other needs the story should cover to appeal to them.

The answer is often found in one of the buyer personas that have been constructed as part of your larger marketing strategy. This can include anything from new leads generated by the marketing team to long-term customers that are being pressed for cross-sell opportunities. In all of these cases, demonstrating value through a relatable customer success story can be part of the solution to conversion.

2. Choose your client or subject

Who you highlight matters. Case studies tie brands together that might otherwise not cross paths. A writer will want to ensure that the highlighted customer aligns with their own company’s brand identity and offerings. Look for a customer with positive name recognition who has had great success with a product or service and is willing to be an advocate.

The client should also match up with the identified target audience. Whichever company or individual is selected should be a reflection of other potential customers who can see themselves in similar circumstances, having the same problems and possible solutions.

Some of the most compelling case studies feature customers who:

• Switch from one product or service to another while naming competitors that missed the mark.
• Experience measurable results that are relatable to others in a specific industry.
• Represent well-known brands and recognizable names that are likely to compel action.
• Advocate for a product or service as a champion and are well-versed in its advantages.

Whoever or whatever customer is selected, marketers must ensure they have the permission of the company involved before getting started. Some brands have strict review and approval procedures for any official marketing or promotional materials that include their name. Acquiring those approvals in advance will prevent any miscommunication or wasted effort if there is an issue with their legal or compliance teams.

3. Conduct research and compile data

Substantiating the claims made in a case study — either by the marketing team or customers themselves — adds validity to the story. To do this, include data and feedback from the client that defines what success looks like. This can be anything from demonstrating return on investment (ROI) to a specific metric the customer was striving to improve. Case studies should prove how an outcome was achieved and show tangible results that indicate to the customer that your solution is the right one.

This step could also include customer interviews. Make sure that the people being interviewed are key stakeholders in the purchase decision or deployment and use of the product or service that is being highlighted. Content writers should work off a set list of questions prepared in advance. It can be helpful to share these with the interviewees beforehand so they have time to consider and craft their responses. One of the best interview tactics to keep in mind is to ask questions where yes and no are not natural answers. This way, your subject will provide more open-ended responses that produce more meaningful content.

4. Choose the right format

There are a number of different ways to format a case study. Depending on what you hope to achieve, one style will be better than another. However, there are some common elements to include, such as:

• An engaging headline
• A subject and customer introduction
• The unique challenge or challenges the customer faced
• The solution the customer used to solve the problem
• The results achieved
• Data and statistics to back up claims of success
• A strong call to action (CTA) to engage with the vendor

It’s also important to note that while case studies are traditionally written as stories, they don’t have to be in a written format. Some companies choose to get more creative with their case studies and produce multimedia content, depending on their audience and objectives. Case study formats can include traditional print stories, interactive web or social content, data-heavy infographics, professionally shot videos, podcasts, and more.

5. Write your case study

We’ll go into more detail later about how exactly to write a case study, including templates and examples. Generally speaking, though, there are a few things to keep in mind when writing your case study.

• Be clear and concise. Readers want to get to the point of the story quickly and easily, and they’ll be looking to see themselves reflected in the story right from the start.
• Provide a big picture. Always make sure to explain who the client is, their goals, and how they achieved success in a short introduction to engage the reader.
• Construct a clear narrative. Stick to the story from the perspective of the customer and what they needed to solve instead of just listing product features or benefits.
• Leverage graphics. Incorporating infographics, charts, and sidebars can be a more engaging and eye-catching way to share key statistics and data in readable ways.
• Offer the right amount of detail. Most case studies are one or two pages with clear sections that a reader can skim to find the information most important to them.
• Include data to support claims. Show real results — both facts and figures and customer quotes — to demonstrate credibility and prove the solution works.

6. Promote your story

Marketers have a number of options for distribution of a freshly minted case study. Many brands choose to publish case studies on their website and post them on social media. This can help support SEO and organic content strategies while also boosting company credibility and trust as visitors see that other businesses have used the product or service.

Marketers are always looking for quality content they can use for lead generation. Consider offering a case study as gated content behind a form on a landing page or as an offer in an email message. One great way to do this is to summarize the content and tease the full story available for download after the user takes an action.

Sales teams can also leverage case studies, so be sure they are aware that the assets exist once they’re published. Especially when it comes to larger B2B sales, companies often ask for examples of similar customer challenges that have been solved.

Now that you’ve learned a bit about case studies and what they should include, you may be wondering how to start creating great customer story content. Here are a couple of templates you can use to structure your case study.

Template 1 — Challenge-solution-result format

• Start with an engaging title. This should be fewer than 70 characters long for SEO best practices. One of the best ways to approach the title is to include the customer’s name and a hint at the challenge they overcame in the end.
• Create an introduction. Lead with an explanation as to who the customer is, the need they had, and the opportunity they found with a specific product or solution. Writers can also suggest the success the customer experienced with the solution they chose.
• Present the challenge. This should be several paragraphs long and explain the problem the customer faced and the issues they were trying to solve. Details should tie into the company’s products and services naturally. This section needs to be the most relatable to the reader so they can picture themselves in a similar situation.
• Share the solution. Explain which product or service offered was the ideal fit for the customer and why. Feel free to delve into their experience setting up, purchasing, and onboarding the solution.
• Explain the results. Demonstrate the impact of the solution they chose by backing up their positive experience with data. Fill in with customer quotes and tangible, measurable results that show the effect of their choice.
• Ask for action. Include a CTA at the end of the case study that invites readers to reach out for more information, try a demo, or learn more — to nurture them further in the marketing pipeline. What you ask of the reader should tie directly into the goals that were established for the case study in the first place.

Template 2 — Data-driven format

• Start with an engaging title. Be sure to include a statistic or data point in the first 70 characters. Again, it’s best to include the customer’s name as part of the title.
• Create an overview. Share the customer’s background and a short version of the challenge they faced. Present the reason a particular product or service was chosen, and feel free to include quotes from the customer about their selection process.
• Present data point 1. Isolate the first metric that the customer used to define success and explain how the product or solution helped to achieve this goal. Provide data points and quotes to substantiate the claim that success was achieved.
• Present data point 2. Isolate the second metric that the customer used to define success and explain what the product or solution did to achieve this goal. Provide data points and quotes to substantiate the claim that success was achieved.
• Present data point 3. Isolate the final metric that the customer used to define success and explain what the product or solution did to achieve this goal. Provide data points and quotes to substantiate the claim that success was achieved.
• Summarize the results. Reiterate the fact that the customer was able to achieve success thanks to a specific product or service. Include quotes and statements that reflect customer satisfaction and suggest they plan to continue using the solution.
• Ask for action. Include a CTA at the end of the case study that asks readers to reach out for more information, try a demo, or learn more — to further nurture them in the marketing pipeline. Again, remember that this is where marketers can look to convert their content into action with the customer.

While templates are helpful, seeing a case study in action can also be a great way to learn. Here are some examples of how Adobe customers have experienced success.

Juniper Networks

One example is the Adobe and Juniper Networks case study , which puts the reader in the customer’s shoes. The beginning of the story quickly orients the reader so that they know exactly who the article is about and what they were trying to achieve. Solutions are outlined in a way that shows Adobe Experience Manager is the best choice and a natural fit for the customer. Along the way, quotes from the client are incorporated to help add validity to the statements. The results in the case study are conveyed with clear evidence of scale and volume using tangible data.

The story of Lenovo’s journey with Adobe is one that spans years of planning, implementation, and rollout. The Lenovo case study does a great job of consolidating all of this into a relatable journey that other enterprise organizations can see themselves taking, despite the project size. This case study also features descriptive headers and compelling visual elements that engage the reader and strengthen the content.

Tata Consulting

When it comes to using data to show customer results, this case study does an excellent job of conveying details and numbers in an easy-to-digest manner. Bullet points at the start break up the content while also helping the reader understand exactly what the case study will be about. Tata Consulting used Adobe to deliver elevated, engaging content experiences for a large telecommunications client of its own — an objective that’s relatable for a lot of companies.

Case studies are a vital tool for any marketing team as they enable you to demonstrate the value of your company’s products and services to others. They help marketers do their job and add credibility to a brand trying to promote its solutions by using the experiences and stories of real customers.

When you’re ready to get started with a case study:

• Think about a few goals you’d like to accomplish with your content.
• Make a list of successful clients that would be strong candidates for a case study.
• Reach out to the client to get their approval and conduct an interview.
• Gather the data to present an engaging and effective customer story.

Adobe can help

There are several Adobe products that can help you craft compelling case studies. Adobe Experience Platform helps you collect data and deliver great customer experiences across every channel. Once you’ve created your case studies, Experience Platform will help you deliver the right information to the right customer at the right time for maximum impact.

To learn more, watch the Adobe Experience Platform story .

Keep in mind that the best case studies are backed by data. That’s where Adobe Real-Time Customer Data Platform and Adobe Analytics come into play. With Real-Time CDP, you can gather the data you need to build a great case study and target specific customers to deliver the content to the right audience at the perfect moment.

Watch the Real-Time CDP overview video to learn more.

Finally, Adobe Analytics turns real-time data into real-time insights. It helps your business collect and synthesize data from multiple platforms to make more informed decisions and create the best case study possible.

Request a demo to learn more about Adobe Analytics.

https://business.adobe.com/blog/perspectives/b2b-ecommerce-10-case-studies-inspire-you

https://business.adobe.com/blog/basics/business-case

https://business.adobe.com/blog/basics/what-is-real-time-analytics

All You Wanted to Know About How to Write a Case Study

What do you study in your college? If you are a psychology, sociology, or anthropology student, we bet you might be familiar with what a case study is. This research method is used to study a certain person, group, or situation. In this guide from our dissertation writing service , you will learn how to write a case study professionally, from researching to citing sources properly. Also, we will explore different types of case studies and show you examples — so that you won’t have any other questions left.

What Is a Case Study?

A case study is a subcategory of research design which investigates problems and offers solutions. Case studies can range from academic research studies to corporate promotional tools trying to sell an idea—their scope is quite vast.

What Is the Difference Between a Research Paper and a Case Study?

While research papers turn the reader’s attention to a certain problem, case studies go even further. Case study guidelines require students to pay attention to details, examining issues closely and in-depth using different research methods. For example, case studies may be used to examine court cases if you study Law, or a patient's health history if you study Medicine. Case studies are also used in Marketing, which are thorough, empirically supported analysis of a good or service's performance. Well-designed case studies can be valuable for prospective customers as they can identify and solve the potential customers pain point.

Case studies involve a lot of storytelling – they usually examine particular cases for a person or a group of people. This method of research is very helpful, as it is very practical and can give a lot of hands-on information. Most commonly, the length of the case study is about 500-900 words, which is much less than the length of an average research paper.

The structure of a case study is very similar to storytelling. It has a protagonist or main character, which in your case is actually a problem you are trying to solve. You can use the system of 3 Acts to make it a compelling story. It should have an introduction, rising action, a climax where transformation occurs, falling action, and a solution.

Here is a rough formula for you to use in your case study:

Problem (Act I): > Solution (Act II) > Result (Act III) > Conclusion.

Types of Case Studies

The purpose of a case study is to provide detailed reports on an event, an institution, a place, future customers, or pretty much anything. There are a few common types of case study, but the type depends on the topic. The following are the most common domains where case studies are needed:

• Historical case studies are great to learn from. Historical events have a multitude of source info offering different perspectives. There are always modern parallels where these perspectives can be applied, compared, and thoroughly analyzed.
• Problem-oriented case studies are usually used for solving problems. These are often assigned as theoretical situations where you need to immerse yourself in the situation to examine it. Imagine you’re working for a startup and you’ve just noticed a significant flaw in your product’s design. Before taking it to the senior manager, you want to do a comprehensive study on the issue and provide solutions. On a greater scale, problem-oriented case studies are a vital part of relevant socio-economic discussions.
• Cumulative case studies collect information and offer comparisons. In business, case studies are often used to tell people about the value of a product.
• Critical case studies explore the causes and effects of a certain case.
• Illustrative case studies describe certain events, investigating outcomes and lessons learned.

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Case Study Format

The case study format is typically made up of eight parts:

• Executive Summary. Explain what you will examine in the case study. Write an overview of the field you’re researching. Make a thesis statement and sum up the results of your observation in a maximum of 2 sentences.
• Background. Provide background information and the most relevant facts. Isolate the issues.
• Case Evaluation. Isolate the sections of the study you want to focus on. In it, explain why something is working or is not working.
• Proposed Solutions. Offer realistic ways to solve what isn’t working or how to improve its current condition. Explain why these solutions work by offering testable evidence.
• Conclusion. Summarize the main points from the case evaluations and proposed solutions. 6. Recommendations. Talk about the strategy that you should choose. Explain why this choice is the most appropriate.
• Implementation. Explain how to put the specific strategies into action.
• References. Provide all the citations.

How to Write a Case Study

Let's discover how to write a case study.

Setting Up the Research

When writing a case study, remember that research should always come first. Reading many different sources and analyzing other points of view will help you come up with more creative solutions. You can also conduct an actual interview to thoroughly investigate the customer story that you'll need for your case study. Including all of the necessary research, writing a case study may take some time. The research process involves doing the following:

• Define your objective. Explain the reason why you’re presenting your subject. Figure out where you will feature your case study; whether it is written, on video, shown as an infographic, streamed as a podcast, etc.
• Determine who will be the right candidate for your case study. Get permission, quotes, and other features that will make your case study effective. Get in touch with your candidate to see if they approve of being part of your work. Study that candidate’s situation and note down what caused it.
• Identify which various consequences could result from the situation. Follow these guidelines on how to start a case study: surf the net to find some general information you might find useful.
• Make a list of credible sources and examine them. Seek out important facts and highlight problems. Always write down your ideas and make sure to brainstorm.
• Focus on several key issues – why they exist, and how they impact your research subject. Think of several unique solutions. Draw from class discussions, readings, and personal experience. When writing a case study, focus on the best solution and explore it in depth. After having all your research in place, writing a case study will be easy. You may first want to check the rubric and criteria of your assignment for the correct case study structure.

Read Also: ' WHAT IS A CREDIBLE SOURCES ?'

Although your instructor might be looking at slightly different criteria, every case study rubric essentially has the same standards. Your professor will want you to exhibit 8 different outcomes:

• Correctly identify the concepts, theories, and practices in the discipline.
• Identify the relevant theories and principles associated with the particular study.
• Evaluate legal and ethical principles and apply them to your decision-making.
• Recognize the global importance and contribution of your case.
• Construct a coherent summary and explanation of the study.
• Demonstrate analytical and critical-thinking skills.
• Explain the interrelationships between the environment and nature.
• Integrate theory and practice of the discipline within the analysis.

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Case Study Outline

Let's look at the structure of an outline based on the issue of the alcoholic addiction of 30 people.

Introduction

• Statement of the issue: Alcoholism is a disease rather than a weakness of character.
• Presentation of the problem: Alcoholism is affecting more than 14 million people in the USA, which makes it the third most common mental illness there.
• Explanation of the terms: In the past, alcoholism was commonly referred to as alcohol dependence or alcohol addiction. Alcoholism is now the more severe stage of this addiction in the disorder spectrum.
• Hypotheses: Drinking in excess can lead to the use of other drugs.
• Importance of your story: How the information you present can help people with their addictions.
• Background of the story: Include an explanation of why you chose this topic.
• Presentation of analysis and data: Describe the criteria for choosing 30 candidates, the structure of the interview, and the outcomes.
• Strong argument 1: ex. X% of candidates dealing with anxiety and depression...
• Strong argument 2: ex. X amount of people started drinking by their mid-teens.
• Strong argument 3: ex. X% of respondents’ parents had issues with alcohol.
• Concluding statement: I have researched if alcoholism is a disease and found out that…
• Recommendations: Ways and actions for preventing alcohol use.

Writing a Case Study Draft

After you’ve done your case study research and written the outline, it’s time to focus on the draft. In a draft, you have to develop and write your case study by using: the data which you collected throughout the research, interviews, and the analysis processes that were undertaken. Follow these rules for the draft:

• Your draft should contain at least 4 sections: an introduction; a body where you should include background information, an explanation of why you decided to do this case study, and a presentation of your main findings; a conclusion where you present data; and references.
• In the introduction, you should set the pace very clearly. You can even raise a question or quote someone you interviewed in the research phase. It must provide adequate background information on the topic. The background may include analyses of previous studies on your topic. Include the aim of your case here as well. Think of it as a thesis statement. The aim must describe the purpose of your work—presenting the issues that you want to tackle. Include background information, such as photos or videos you used when doing the research.
• Describe your unique research process, whether it was through interviews, observations, academic journals, etc. The next point includes providing the results of your research. Tell the audience what you found out. Why is this important, and what could be learned from it? Discuss the real implications of the problem and its significance in the world.
• Include quotes and data (such as findings, percentages, and awards). This will add a personal touch and better credibility to the case you present. Explain what results you find during your interviews in regards to the problem and how it developed. Also, write about solutions which have already been proposed by other people who have already written about this case.
• At the end of your case study, you should offer possible solutions, but don’t worry about solving them yourself.

Use Data to Illustrate Key Points in Your Case Study

Even though your case study is a story, it should be based on evidence. Use as much data as possible to illustrate your point. Without the right data, your case study may appear weak and the readers may not be able to relate to your issue as much as they should. Let's see the examples from essay writing service :

‍ With data: Alcoholism is affecting more than 14 million people in the USA, which makes it the third most common mental illness there. Without data: A lot of people suffer from alcoholism in the United States.

Try to include as many credible sources as possible. You may have terms or sources that could be hard for other cultures to understand. If this is the case, you should include them in the appendix or Notes for the Instructor or Professor.

Finalizing the Draft: Checklist

After you finish drafting your case study, polish it up by answering these ‘ask yourself’ questions and think about how to end your case study:

• Check that you follow the correct case study format, also in regards to text formatting.
• Check that your work is consistent with its referencing and citation style.
• Micro-editing — check for grammar and spelling issues.
• Macro-editing — does ‘the big picture’ come across to the reader? Is there enough raw data, such as real-life examples or personal experiences? Have you made your data collection process completely transparent? Does your analysis provide a clear conclusion, allowing for further research and practice?

Problems to avoid:

• Overgeneralization – Do not go into further research that deviates from the main problem.
• Failure to Document Limitations – Just as you have to clearly state the limitations of a general research study, you must describe the specific limitations inherent in the subject of analysis.
• Failure to Extrapolate All Possible Implications – Just as you don't want to over-generalize from your case study findings, you also have to be thorough in the consideration of all possible outcomes or recommendations derived from your findings.

How to Create a Title Page and Cite a Case Study

Let's see how to create an awesome title page.

Your title page depends on the prescribed citation format. The title page should include:

• A title that attracts some attention and describes your study
• The title should have the words “case study” in it
• The title should range between 5-9 words in length
• Your name and contact information
• Your finished paper should be only 500 to 1,500 words in length.With this type of assignment, write effectively and avoid fluff

Here is a template for the APA and MLA format title page:

There are some cases when you need to cite someone else's study in your own one – therefore, you need to master how to cite a case study. A case study is like a research paper when it comes to citations. You can cite it like you cite a book, depending on what style you need.

Citation Example in MLA ‍ Hill, Linda, Tarun Khanna, and Emily A. Stecker. HCL Technologies. Boston: Harvard Business Publishing, 2008. Print.

Citation Example in APA ‍ Hill, L., Khanna, T., & Stecker, E. A. (2008). HCL Technologies. Boston: Harvard Business Publishing.

Citation Example in Chicago Hill, Linda, Tarun Khanna, and Emily A. Stecker. HCL Technologies.

Case Study Examples

To give you an idea of a professional case study example, we gathered and linked some below.

Eastman Kodak Case Study

Case Study Example: Audi Trains Mexican Autoworkers in Germany

To conclude, a case study is one of the best methods of getting an overview of what happened to a person, a group, or a situation in practice. It allows you to have an in-depth glance at the real-life problems that businesses, healthcare industry, criminal justice, etc. may face. This insight helps us look at such situations in a different light. This is because we see scenarios that we otherwise would not, without necessarily being there. If you need custom essays , try our research paper writing services .

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What Is A Case Study?

How to cite a case study in apa, how to write a case study, related articles.

Organizing Your Social Sciences Research Assignments

• Annotated Bibliography
• Analyzing a Scholarly Journal Article
• Group Presentations
• Dealing with Nervousness
• Using Visual Aids
• Grading Someone Else's Paper
• Types of Structured Group Activities
• Group Project Survival Skills
• Leading a Class Discussion
• Multiple Book Review Essay
• Reviewing Collected Works
• Writing a Case Analysis Paper
• Writing a Case Study
• About Informed Consent
• Writing Field Notes
• Writing a Policy Memo
• Writing a Reflective Paper
• Writing a Research Proposal
• Generative AI and Writing
• Acknowledgments

A case study research paper examines a person, place, event, condition, phenomenon, or other type of subject of analysis in order to extrapolate  key themes and results that help predict future trends, illuminate previously hidden issues that can be applied to practice, and/or provide a means for understanding an important research problem with greater clarity. A case study research paper usually examines a single subject of analysis, but case study papers can also be designed as a comparative investigation that shows relationships between two or more subjects. The methods used to study a case can rest within a quantitative, qualitative, or mixed-method investigative paradigm.

Case Studies. Writing@CSU. Colorado State University; Mills, Albert J. , Gabrielle Durepos, and Eiden Wiebe, editors. Encyclopedia of Case Study Research . Thousand Oaks, CA: SAGE Publications, 2010 ; “What is a Case Study?” In Swanborn, Peter G. Case Study Research: What, Why and How? London: SAGE, 2010.

How to Approach Writing a Case Study Research Paper

General information about how to choose a topic to investigate can be found under the " Choosing a Research Problem " tab in the Organizing Your Social Sciences Research Paper writing guide. Review this page because it may help you identify a subject of analysis that can be investigated using a case study design.

However, identifying a case to investigate involves more than choosing the research problem . A case study encompasses a problem contextualized around the application of in-depth analysis, interpretation, and discussion, often resulting in specific recommendations for action or for improving existing conditions. As Seawright and Gerring note, practical considerations such as time and access to information can influence case selection, but these issues should not be the sole factors used in describing the methodological justification for identifying a particular case to study. Given this, selecting a case includes considering the following:

• The case represents an unusual or atypical example of a research problem that requires more in-depth analysis? Cases often represent a topic that rests on the fringes of prior investigations because the case may provide new ways of understanding the research problem. For example, if the research problem is to identify strategies to improve policies that support girl's access to secondary education in predominantly Muslim nations, you could consider using Azerbaijan as a case study rather than selecting a more obvious nation in the Middle East. Doing so may reveal important new insights into recommending how governments in other predominantly Muslim nations can formulate policies that support improved access to education for girls.
• The case provides important insight or illuminate a previously hidden problem? In-depth analysis of a case can be based on the hypothesis that the case study will reveal trends or issues that have not been exposed in prior research or will reveal new and important implications for practice. For example, anecdotal evidence may suggest drug use among homeless veterans is related to their patterns of travel throughout the day. Assuming prior studies have not looked at individual travel choices as a way to study access to illicit drug use, a case study that observes a homeless veteran could reveal how issues of personal mobility choices facilitate regular access to illicit drugs. Note that it is important to conduct a thorough literature review to ensure that your assumption about the need to reveal new insights or previously hidden problems is valid and evidence-based.
• The case challenges and offers a counter-point to prevailing assumptions? Over time, research on any given topic can fall into a trap of developing assumptions based on outdated studies that are still applied to new or changing conditions or the idea that something should simply be accepted as "common sense," even though the issue has not been thoroughly tested in current practice. A case study analysis may offer an opportunity to gather evidence that challenges prevailing assumptions about a research problem and provide a new set of recommendations applied to practice that have not been tested previously. For example, perhaps there has been a long practice among scholars to apply a particular theory in explaining the relationship between two subjects of analysis. Your case could challenge this assumption by applying an innovative theoretical framework [perhaps borrowed from another discipline] to explore whether this approach offers new ways of understanding the research problem. Taking a contrarian stance is one of the most important ways that new knowledge and understanding develops from existing literature.
• The case provides an opportunity to pursue action leading to the resolution of a problem? Another way to think about choosing a case to study is to consider how the results from investigating a particular case may result in findings that reveal ways in which to resolve an existing or emerging problem. For example, studying the case of an unforeseen incident, such as a fatal accident at a railroad crossing, can reveal hidden issues that could be applied to preventative measures that contribute to reducing the chance of accidents in the future. In this example, a case study investigating the accident could lead to a better understanding of where to strategically locate additional signals at other railroad crossings so as to better warn drivers of an approaching train, particularly when visibility is hindered by heavy rain, fog, or at night.
• The case offers a new direction in future research? A case study can be used as a tool for an exploratory investigation that highlights the need for further research about the problem. A case can be used when there are few studies that help predict an outcome or that establish a clear understanding about how best to proceed in addressing a problem. For example, after conducting a thorough literature review [very important!], you discover that little research exists showing the ways in which women contribute to promoting water conservation in rural communities of east central Africa. A case study of how women contribute to saving water in a rural village of Uganda can lay the foundation for understanding the need for more thorough research that documents how women in their roles as cooks and family caregivers think about water as a valuable resource within their community. This example of a case study could also point to the need for scholars to build new theoretical frameworks around the topic [e.g., applying feminist theories of work and family to the issue of water conservation].

Eisenhardt, Kathleen M. “Building Theories from Case Study Research.” Academy of Management Review 14 (October 1989): 532-550; Emmel, Nick. Sampling and Choosing Cases in Qualitative Research: A Realist Approach . Thousand Oaks, CA: SAGE Publications, 2013; Gerring, John. “What Is a Case Study and What Is It Good for?” American Political Science Review 98 (May 2004): 341-354; Mills, Albert J. , Gabrielle Durepos, and Eiden Wiebe, editors. Encyclopedia of Case Study Research . Thousand Oaks, CA: SAGE Publications, 2010; Seawright, Jason and John Gerring. "Case Selection Techniques in Case Study Research." Political Research Quarterly 61 (June 2008): 294-308.

Structure and Writing Style

The purpose of a paper in the social sciences designed around a case study is to thoroughly investigate a subject of analysis in order to reveal a new understanding about the research problem and, in so doing, contributing new knowledge to what is already known from previous studies. In applied social sciences disciplines [e.g., education, social work, public administration, etc.], case studies may also be used to reveal best practices, highlight key programs, or investigate interesting aspects of professional work.

In general, the structure of a case study research paper is not all that different from a standard college-level research paper. However, there are subtle differences you should be aware of. Here are the key elements to organizing and writing a case study research paper.

I.  Introduction

As with any research paper, your introduction should serve as a roadmap for your readers to ascertain the scope and purpose of your study . The introduction to a case study research paper, however, should not only describe the research problem and its significance, but you should also succinctly describe why the case is being used and how it relates to addressing the problem. The two elements should be linked. With this in mind, a good introduction answers these four questions:

• What is being studied? Describe the research problem and describe the subject of analysis [the case] you have chosen to address the problem. Explain how they are linked and what elements of the case will help to expand knowledge and understanding about the problem.
• Why is this topic important to investigate? Describe the significance of the research problem and state why a case study design and the subject of analysis that the paper is designed around is appropriate in addressing the problem.
• What did we know about this topic before I did this study? Provide background that helps lead the reader into the more in-depth literature review to follow. If applicable, summarize prior case study research applied to the research problem and why it fails to adequately address the problem. Describe why your case will be useful. If no prior case studies have been used to address the research problem, explain why you have selected this subject of analysis.
• How will this study advance new knowledge or new ways of understanding? Explain why your case study will be suitable in helping to expand knowledge and understanding about the research problem.

Each of these questions should be addressed in no more than a few paragraphs. Exceptions to this can be when you are addressing a complex research problem or subject of analysis that requires more in-depth background information.

II.  Literature Review

The literature review for a case study research paper is generally structured the same as it is for any college-level research paper. The difference, however, is that the literature review is focused on providing background information and  enabling historical interpretation of the subject of analysis in relation to the research problem the case is intended to address . This includes synthesizing studies that help to:

• Place relevant works in the context of their contribution to understanding the case study being investigated . This would involve summarizing studies that have used a similar subject of analysis to investigate the research problem. If there is literature using the same or a very similar case to study, you need to explain why duplicating past research is important [e.g., conditions have changed; prior studies were conducted long ago, etc.].
• Describe the relationship each work has to the others under consideration that informs the reader why this case is applicable . Your literature review should include a description of any works that support using the case to investigate the research problem and the underlying research questions.
• Identify new ways to interpret prior research using the case study . If applicable, review any research that has examined the research problem using a different research design. Explain how your use of a case study design may reveal new knowledge or a new perspective or that can redirect research in an important new direction.
• Resolve conflicts amongst seemingly contradictory previous studies . This refers to synthesizing any literature that points to unresolved issues of concern about the research problem and describing how the subject of analysis that forms the case study can help resolve these existing contradictions.
• Point the way in fulfilling a need for additional research . Your review should examine any literature that lays a foundation for understanding why your case study design and the subject of analysis around which you have designed your study may reveal a new way of approaching the research problem or offer a perspective that points to the need for additional research.
• Expose any gaps that exist in the literature that the case study could help to fill . Summarize any literature that not only shows how your subject of analysis contributes to understanding the research problem, but how your case contributes to a new way of understanding the problem that prior research has failed to do.
• Locate your own research within the context of existing literature [very important!] . Collectively, your literature review should always place your case study within the larger domain of prior research about the problem. The overarching purpose of reviewing pertinent literature in a case study paper is to demonstrate that you have thoroughly identified and synthesized prior studies in relation to explaining the relevance of the case in addressing the research problem.

III.  Method

In this section, you explain why you selected a particular case [i.e., subject of analysis] and the strategy you used to identify and ultimately decide that your case was appropriate in addressing the research problem. The way you describe the methods used varies depending on the type of subject of analysis that constitutes your case study.

If your subject of analysis is an incident or event . In the social and behavioral sciences, the event or incident that represents the case to be studied is usually bounded by time and place, with a clear beginning and end and with an identifiable location or position relative to its surroundings. The subject of analysis can be a rare or critical event or it can focus on a typical or regular event. The purpose of studying a rare event is to illuminate new ways of thinking about the broader research problem or to test a hypothesis. Critical incident case studies must describe the method by which you identified the event and explain the process by which you determined the validity of this case to inform broader perspectives about the research problem or to reveal new findings. However, the event does not have to be a rare or uniquely significant to support new thinking about the research problem or to challenge an existing hypothesis. For example, Walo, Bull, and Breen conducted a case study to identify and evaluate the direct and indirect economic benefits and costs of a local sports event in the City of Lismore, New South Wales, Australia. The purpose of their study was to provide new insights from measuring the impact of a typical local sports event that prior studies could not measure well because they focused on large "mega-events." Whether the event is rare or not, the methods section should include an explanation of the following characteristics of the event: a) when did it take place; b) what were the underlying circumstances leading to the event; and, c) what were the consequences of the event in relation to the research problem.

If your subject of analysis is a person. Explain why you selected this particular individual to be studied and describe what experiences they have had that provide an opportunity to advance new understandings about the research problem. Mention any background about this person which might help the reader understand the significance of their experiences that make them worthy of study. This includes describing the relationships this person has had with other people, institutions, and/or events that support using them as the subject for a case study research paper. It is particularly important to differentiate the person as the subject of analysis from others and to succinctly explain how the person relates to examining the research problem [e.g., why is one politician in a particular local election used to show an increase in voter turnout from any other candidate running in the election]. Note that these issues apply to a specific group of people used as a case study unit of analysis [e.g., a classroom of students].

If your subject of analysis is a place. In general, a case study that investigates a place suggests a subject of analysis that is unique or special in some way and that this uniqueness can be used to build new understanding or knowledge about the research problem. A case study of a place must not only describe its various attributes relevant to the research problem [e.g., physical, social, historical, cultural, economic, political], but you must state the method by which you determined that this place will illuminate new understandings about the research problem. It is also important to articulate why a particular place as the case for study is being used if similar places also exist [i.e., if you are studying patterns of homeless encampments of veterans in open spaces, explain why you are studying Echo Park in Los Angeles rather than Griffith Park?]. If applicable, describe what type of human activity involving this place makes it a good choice to study [e.g., prior research suggests Echo Park has more homeless veterans].

If your subject of analysis is a phenomenon. A phenomenon refers to a fact, occurrence, or circumstance that can be studied or observed but with the cause or explanation to be in question. In this sense, a phenomenon that forms your subject of analysis can encompass anything that can be observed or presumed to exist but is not fully understood. In the social and behavioral sciences, the case usually focuses on human interaction within a complex physical, social, economic, cultural, or political system. For example, the phenomenon could be the observation that many vehicles used by ISIS fighters are small trucks with English language advertisements on them. The research problem could be that ISIS fighters are difficult to combat because they are highly mobile. The research questions could be how and by what means are these vehicles used by ISIS being supplied to the militants and how might supply lines to these vehicles be cut off? How might knowing the suppliers of these trucks reveal larger networks of collaborators and financial support? A case study of a phenomenon most often encompasses an in-depth analysis of a cause and effect that is grounded in an interactive relationship between people and their environment in some way.

NOTE:   The choice of the case or set of cases to study cannot appear random. Evidence that supports the method by which you identified and chose your subject of analysis should clearly support investigation of the research problem and linked to key findings from your literature review. Be sure to cite any studies that helped you determine that the case you chose was appropriate for examining the problem.

IV.  Discussion

The main elements of your discussion section are generally the same as any research paper, but centered around interpreting and drawing conclusions about the key findings from your analysis of the case study. Note that a general social sciences research paper may contain a separate section to report findings. However, in a paper designed around a case study, it is common to combine a description of the results with the discussion about their implications. The objectives of your discussion section should include the following:

Reiterate the Research Problem/State the Major Findings Briefly reiterate the research problem you are investigating and explain why the subject of analysis around which you designed the case study were used. You should then describe the findings revealed from your study of the case using direct, declarative, and succinct proclamation of the study results. Highlight any findings that were unexpected or especially profound.

Explain the Meaning of the Findings and Why They are Important Systematically explain the meaning of your case study findings and why you believe they are important. Begin this part of the section by repeating what you consider to be your most important or surprising finding first, then systematically review each finding. Be sure to thoroughly extrapolate what your analysis of the case can tell the reader about situations or conditions beyond the actual case that was studied while, at the same time, being careful not to misconstrue or conflate a finding that undermines the external validity of your conclusions.

Relate the Findings to Similar Studies No study in the social sciences is so novel or possesses such a restricted focus that it has absolutely no relation to previously published research. The discussion section should relate your case study results to those found in other studies, particularly if questions raised from prior studies served as the motivation for choosing your subject of analysis. This is important because comparing and contrasting the findings of other studies helps support the overall importance of your results and it highlights how and in what ways your case study design and the subject of analysis differs from prior research about the topic.

Consider Alternative Explanations of the Findings Remember that the purpose of social science research is to discover and not to prove. When writing the discussion section, you should carefully consider all possible explanations revealed by the case study results, rather than just those that fit your hypothesis or prior assumptions and biases. Be alert to what the in-depth analysis of the case may reveal about the research problem, including offering a contrarian perspective to what scholars have stated in prior research if that is how the findings can be interpreted from your case.

Acknowledge the Study's Limitations You can state the study's limitations in the conclusion section of your paper but describing the limitations of your subject of analysis in the discussion section provides an opportunity to identify the limitations and explain why they are not significant. This part of the discussion section should also note any unanswered questions or issues your case study could not address. More detailed information about how to document any limitations to your research can be found here .

Suggest Areas for Further Research Although your case study may offer important insights about the research problem, there are likely additional questions related to the problem that remain unanswered or findings that unexpectedly revealed themselves as a result of your in-depth analysis of the case. Be sure that the recommendations for further research are linked to the research problem and that you explain why your recommendations are valid in other contexts and based on the original assumptions of your study.

V.  Conclusion

As with any research paper, you should summarize your conclusion in clear, simple language; emphasize how the findings from your case study differs from or supports prior research and why. Do not simply reiterate the discussion section. Provide a synthesis of key findings presented in the paper to show how these converge to address the research problem. If you haven't already done so in the discussion section, be sure to document the limitations of your case study and any need for further research.

The function of your paper's conclusion is to: 1) reiterate the main argument supported by the findings from your case study; 2) state clearly the context, background, and necessity of pursuing the research problem using a case study design in relation to an issue, controversy, or a gap found from reviewing the literature; and, 3) provide a place to persuasively and succinctly restate the significance of your research problem, given that the reader has now been presented with in-depth information about the topic.

Consider the following points to help ensure your conclusion is appropriate:

• If the argument or purpose of your paper is complex, you may need to summarize these points for your reader.
• If prior to your conclusion, you have not yet explained the significance of your findings or if you are proceeding inductively, use the conclusion of your paper to describe your main points and explain their significance.
• Move from a detailed to a general level of consideration of the case study's findings that returns the topic to the context provided by the introduction or within a new context that emerges from your case study findings.

Note that, depending on the discipline you are writing in or the preferences of your professor, the concluding paragraph may contain your final reflections on the evidence presented as it applies to practice or on the essay's central research problem. However, the nature of being introspective about the subject of analysis you have investigated will depend on whether you are explicitly asked to express your observations in this way.

Problems to Avoid

Overgeneralization One of the goals of a case study is to lay a foundation for understanding broader trends and issues applied to similar circumstances. However, be careful when drawing conclusions from your case study. They must be evidence-based and grounded in the results of the study; otherwise, it is merely speculation. Looking at a prior example, it would be incorrect to state that a factor in improving girls access to education in Azerbaijan and the policy implications this may have for improving access in other Muslim nations is due to girls access to social media if there is no documentary evidence from your case study to indicate this. There may be anecdotal evidence that retention rates were better for girls who were engaged with social media, but this observation would only point to the need for further research and would not be a definitive finding if this was not a part of your original research agenda.

Failure to Document Limitations No case is going to reveal all that needs to be understood about a research problem. Therefore, just as you have to clearly state the limitations of a general research study , you must describe the specific limitations inherent in the subject of analysis. For example, the case of studying how women conceptualize the need for water conservation in a village in Uganda could have limited application in other cultural contexts or in areas where fresh water from rivers or lakes is plentiful and, therefore, conservation is understood more in terms of managing access rather than preserving access to a scarce resource.

Failure to Extrapolate All Possible Implications Just as you don't want to over-generalize from your case study findings, you also have to be thorough in the consideration of all possible outcomes or recommendations derived from your findings. If you do not, your reader may question the validity of your analysis, particularly if you failed to document an obvious outcome from your case study research. For example, in the case of studying the accident at the railroad crossing to evaluate where and what types of warning signals should be located, you failed to take into consideration speed limit signage as well as warning signals. When designing your case study, be sure you have thoroughly addressed all aspects of the problem and do not leave gaps in your analysis that leave the reader questioning the results.

Case Studies. Writing@CSU. Colorado State University; Gerring, John. Case Study Research: Principles and Practices . New York: Cambridge University Press, 2007; Merriam, Sharan B. Qualitative Research and Case Study Applications in Education . Rev. ed. San Francisco, CA: Jossey-Bass, 1998; Miller, Lisa L. “The Use of Case Studies in Law and Social Science Research.” Annual Review of Law and Social Science 14 (2018): TBD; Mills, Albert J., Gabrielle Durepos, and Eiden Wiebe, editors. Encyclopedia of Case Study Research . Thousand Oaks, CA: SAGE Publications, 2010; Putney, LeAnn Grogan. "Case Study." In Encyclopedia of Research Design , Neil J. Salkind, editor. (Thousand Oaks, CA: SAGE Publications, 2010), pp. 116-120; Simons, Helen. Case Study Research in Practice . London: SAGE Publications, 2009;  Kratochwill,  Thomas R. and Joel R. Levin, editors. Single-Case Research Design and Analysis: New Development for Psychology and Education .  Hilldsale, NJ: Lawrence Erlbaum Associates, 1992; Swanborn, Peter G. Case Study Research: What, Why and How? London : SAGE, 2010; Yin, Robert K. Case Study Research: Design and Methods . 6th edition. Los Angeles, CA, SAGE Publications, 2014; Walo, Maree, Adrian Bull, and Helen Breen. “Achieving Economic Benefits at Local Events: A Case Study of a Local Sports Event.” Festival Management and Event Tourism 4 (1996): 95-106.

Writing Tip

At Least Five Misconceptions about Case Study Research

Social science case studies are often perceived as limited in their ability to create new knowledge because they are not randomly selected and findings cannot be generalized to larger populations. Flyvbjerg examines five misunderstandings about case study research and systematically "corrects" each one. To quote, these are:

Misunderstanding 1 :  General, theoretical [context-independent] knowledge is more valuable than concrete, practical [context-dependent] knowledge. Misunderstanding 2 :  One cannot generalize on the basis of an individual case; therefore, the case study cannot contribute to scientific development. Misunderstanding 3 :  The case study is most useful for generating hypotheses; that is, in the first stage of a total research process, whereas other methods are more suitable for hypotheses testing and theory building. Misunderstanding 4 :  The case study contains a bias toward verification, that is, a tendency to confirm the researcher’s preconceived notions. Misunderstanding 5 :  It is often difficult to summarize and develop general propositions and theories on the basis of specific case studies [p. 221].

While writing your paper, think introspectively about how you addressed these misconceptions because to do so can help you strengthen the validity and reliability of your research by clarifying issues of case selection, the testing and challenging of existing assumptions, the interpretation of key findings, and the summation of case outcomes. Think of a case study research paper as a complete, in-depth narrative about the specific properties and key characteristics of your subject of analysis applied to the research problem.

Flyvbjerg, Bent. “Five Misunderstandings About Case-Study Research.” Qualitative Inquiry 12 (April 2006): 219-245.

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Case Interview Types: Master Common Ones Before Your Interview

• Last Updated January, 2024

Rebecca Smith-Allen

Former McKinsey Engagement Manager

On Case Study Preparation , we described what a case interview question is and how you should approach answering one. You can think about that page as your Consulting Case Interview 101 course.

But if we could tell you how to ace your consulting case interview in just one page, Bain, BCG, McKinsey, and other top consulting firms would give out a lot more offers than they do every year.

On this page, we discuss the most common types of case study interview questions . We’ll take your understanding of how to answer these to the next level by outlining the key issues to consider when structuring your answer.

Let’s get started!

Here are the types of cases you might come across during your case interview :

• Profitability Cases 1.1 Profit Optimization 1.2 Revenue Growth 1.3 Pricing Optimization 1.4 Market Entry 1.5 M&A 1.6 Cost Optimization 1.7 Startup / Early-Stage Venture
• Non-Profitability Cases 2.1   Lives Affected 2.2 Retention 2.3 Industry Landscape and Competitive Dynamics
• Market Sizing Questions (also called dinner conversation cases)
• Case Interview Math (also known as consulting math) 4.1 Consulting Math Example 4.2 Summary of Key Things to Remember on Consulting Math Questions

How To Make the Most of Case Interview Practice Time

Help with case study interview preparation.

Nail the case & fit interview with strategies from former MBB Interviewers that have helped 89.6% of our clients pass the case interview.

Profitability Cases

On this page , we discussed case interview  frameworks   that can help you structure your answers to case study interview questions, we introduced the profitability equation. It’s 1 of 2 basic business frameworks you can use to answer any type of case question. 

This formula can help ensure you address all the key aspects of straightforward profitability cases like the following:

A sports apparel retailer has experienced declining sales in its stores over the past year and declining profits. How would you recommend they address their profitability problem?

A cell phone manufacturer is experiencing declining profitability despite strong sales. What should they do to improve their bottom line?

For more detail on the components in this formula and an example of how to use it to solve a case interview question, see our  Case Interview Frameworks  page . Below, we’ll discuss types of profitability problems that go beyond the basics.out

Profit Optimization

Perhaps a company is profitable… just not profitable enough . 

Maybe its margins are lower than those of an industry rival. 

Maybe they’ve dipped below its own prior-year performance. 

Perhaps management sees an opportunity to launch a new product, leapfrogging the competition, but needs to generate more cash to invest in development. 

Any of these can be reasons to improve the performance of an already profitable company. 

Sample questions:

A nationwide fast-food chain failed to meet Wall Street expectations on its latest investor call and as a result, its stock price fell significantly. Management wants help identifying opportunities to improve the bottom line.

The CEO of a regional hospital chain is concerned that his company’s profitability is half that of the market leader. How can the company grow its net income?

Use the Profitability Equation

In structuring your analysis of a profit optimization case, you should touch on all 4 components of the profitability equation to understand what the company is doing well and where things have taken a turn for the worse. 

But the underlying problem in this type of case may be more subtle than in a basic profitability question. 

Instead of a big jump in costs or the loss of a large customer wiping out a significant chunk of revenue, the company may be experiencing a couple of small problems that add up to bad news for the bottom line. 

Benchmark Relative to Competition of Past Performance

For example, if our client is a TV manufacturer and we find out that our cost of producing a TV has increased overtime while our prices have remained the same, we can see that rising costs is the reason for our profits declining. 

To turn around the situation, we could look into what the competition is doing to reduce costs. For example, if a competitor is sourcing the same materials as us but from a cheaper supplier, we want to see if we can lower our cost by sourcing from the same supplier.

Benchmark One Business Segment to Another

Another way consultants benchmark performance on revenue and cost levers is by comparing the performance in one business segment or type of end-customer to another . 

Continuing with our TV manufacturing example, we might find that the client has seen costs rise on components in its high-end models but remain constant for its low-end models. 

We can look into what is being done differently in the low-end product group: low-cost sourcing, process improvement, etc. to find opportunities to improve the cost position in the high-end segment.

Use Key Performance Indicators (KPIs)

The company may also need more disciplined business processes and a system for measuring key performance indicators . 

Our TV manufacturer might institute a system for measuring cost per unit on a weekly or monthly basis in order to ensure they have an early warning system to monitor if costs are getting out of line.

To go with these KPIs, a regular process for reviewing the costs and taking necessary action could be instituted. Disciplined processes and performance indicators will help to fine-tune operations over time, taking them from good to best-in-class.

Key concepts to consider when addressing a profit optimization case:

The profitability equation including all its components,

• Benchmarks of cost and/or revenue relative to best-in-class competition and prior year performance.  
• Benchmark the company’s performance segmented by product or type of customer .
• Opportunities for business process improvement and key performance indicators that will allow management to monitor profitability more closely. 

Revenue Growth

Revenue growth case questions focus on companies that, while already profitable, still want to grow. 

They can do this by increasing market share, by selling their existing products to new markets, by selling new products to their existing customers, or by pursuing a combination of these opportunities. 

They can also capture more revenue by increasing prices.

A national chain of fitness centers wants to leverage its brand equity by selling additional products and services to its client base. What incremental products and services can profitably grow revenue?

The president of a printer and ink manufacturer thinks there is an opportunity to provide after-sale service to its customer base. What might be the impact on revenue from entering this market?

Capture Additional Market Share

As its name suggests, this type of case study focuses on the first half of the profitability equation — revenue = price x quantity of units sold. in examining units sold, you should consider the company’s ability to capture additional market share for existing products in the markets it already serves. , what is the company’s current share of the market that of its largest competitor what would it take to capture additional share product improvements a shift in marketing and promotion.

If a chain of fitness centers was our client, for example, we’d look at whether the primary competition was 1 or 2 large chains or a number of small, single-location gyms and tailor our strategy to increase market share accordingly. 

If the competition was single-location gyms, we could promote flexibility for members to use our facilities in multiple locations to bring in new customers. We could also leverage the client’s greater size to outspend the small gyms on advertising.

Branch into New Products or Markets

Also, consider the new products and/or markets the company could branch into . What products do competitors sell that the company doesn’t? Does the company have capabilities that would help them  succeed in other markets?

Our fitness center client could consider selling new products like fitness apparel or vitamins. They could expand into new markets, such as towns and cities adjacent to ones currently served.

Offer Services to Existing Customers

In addition, consider  services that can be sold to existing customers . Post-sales support for equipment, for example. Or consumables used with their products, like ink for a printer manufacturer. Our fitness center client could look into providing personal fitness coaching services to members.

Review Pricing

Lastly, consider the company’s  flexibility to raise prices . Where do their prices stand relative to competitive products or services? Do their products or services have higher quality or value-added capabilities that would command a higher price?

For more examples of revenue growth case interviews, see our  Revenue Growth Case article. 

Pricing Optimization

A company must have a solid product or service offering to be able to take a price increase without seeing a significant loss of sales to competitors. 

If their products or services are strong, then optimizing price can be an important lever to grow revenue.

A manufacturer of kitchen knives sells a range of products, from low-end to professional, to customers at different price points. They’ve developed a new line of knives in collaboration with a celebrity chef and would like help setting the prices for these products.

The airline industry has experienced significant changes in its pricing model over the past few years, with some airlines charging separately for checked baggage, meals, and beverages. A global carrier has asked us to help optimize the pricing of the additional services it provides to customers who fly with them.

Elasticity of Demand

When prices rise, demand for a product goes down and when prices fall, demand rises. You’ll remember this from Economics 101, or perhaps just from common sense. Pricing optimization is all about how much . 

If you can raise prices with demand going down just a little, you can improve a company’s revenues by raising price. If a change in price has a big impact on demand, then raising price could be a big mistake.

The term for this is Price Elasticity of Demand . If demand for a product or service changes a lot in response to a change in price, it’s said to have price elasticity. Products with many substitutes or ones that consumers can easily do without are the most sensitive to price changes. 

For example, if McDonald’s raised the price of the Big Mac, more customers might go to Burger King, Taco Bell, or just eat lunch at home. McDonald’s hamburger sales would fall dramatically.

Substitutes

For some products, demand is relatively insensitive to changes in price. This can be the case for luxury goods, for products that have few substitutes , or for when there are large switching costs. When the cost of home heating oil rises, some customers consider switching to natural gas to heat their homes. But if doing so will require buying a new furnace to run on gas or paying for pipes from their house to the gas distribution network, they won’t make the change unless the change in price is dramatic and/or expected to persist for a number of years. 

3 Methods for Setting Prices

Competitive-based pricing — Setting prices based on the prices of other similar products in the market. This is the simplest method for setting prices. Companies who use competitive-based pricing are price takers.

Cost-based pricing —Setting prices as a function of the cost to provide a good or service plus a profit margin. Cost alone can’t be used to set pricing because if a company’s costs are out of line with its competitors, it may price itself out of the market.

Value-based pricing — Setting prices based on the value provided to customers. Luxury goods are priced well above the cost of their production because customers of these products value association with the prestigious image the product conveys. Products that provide significant value to customers in terms of saving time or providing features not found in other products can be priced higher because they are worth more to customers.

Value-based pricing the best pricing method but it can only be used for products and services that are sufficiently differentiated in the eyes of the customer that they will not change their buying behavior in response to higher prices.

Market Entry

Significant start-up costs will be incurred to develop and manufacture a new product, to launch the marketing campaign, or to build the sales force needed to find customers. 

To ensure that spending money on start-up costs are worthwhile, due diligence needs to be done to estimate the size of the market being considered and the cost of successfully entering it.

A teen fashion retailer has seen its sales boom in the North American market for the past 5 years. They’re considering expansion into international markets. They’d like help identifying which markets provide the best opportunities for their line of clothing.

A not-for-profit organization has been successful at hiring the long-term unemployed to manufacturer furniture made from pallets and other recycled items. They’ve not only designed and created beautiful pieces of indoor and outdoor furniture, but also helped to improve the lives of individuals in one city. They’d like to expand to other products and potentially to other cities and have asked for our help in assessing their options.

There are  4 parts to any market entry case : market size, market attractiveness, costs of entry and capabilities required. Let’s look at each.

Market size

Market sizing is sometimes used as a case interview question on its own. See below for more details . It’s also usually the first part of a market entry case. It addresses how large a market is in terms of annual revenue, number of units sold, or both. The underlying issue is whether there is enough opportunity in a market to make it worth the up-front cost.

To determine whether the amount of sales revenue or unit volume is “enough,” estimate the size of the market based on the information provided by your interviewer or by using factors you can reasonably estimate about the market. You can then consider profit margins and what portion of the market the company must capture to break even.

Market attractiveness

The market a company is thinking about entering may be huge, but it can still be unattractive. Key questions include: What is the profit margin for companies already in the market?  What does the competition in the market look like? Large firms with huge marketing budgets or small companies? 

Costs of entry

Will new technology, equipment, sales staff, or something else be required to succeed in the new market? If so, what will it cost? The greater the investment required to enter a market, the more difficult it will be to recoup the initial investment.

Capabilities

Does the firm being discussed have what it takes to succeed in the new market? In some markets, the key to success is marketing expertise and distribution. In others, it’s low costs and disciplined business processes. Identify the key attributes of success in the market and whether the company possesses those attributes.

To learn how you can structure and break down a case such as these, visit the  Case Interview Frameworks  page can help you think through important factors in this type of consulting case interview question.

Above, we looked at how to analyze a market entry case. 

If a market is attractive but the client does not have all the capabilities required to succeed in it, it may decide to buy the right capabilities through a merger or acquisition (M&A). 

They could also consider M&A opportunities if they need to enter the market fast rather than build capabilities over time.

The number 3 competitor in the cellular phone services market is at a disadvantage relative to its larger competitors. Providing cellular phone service has high fixed costs—for the equipment that transmits calls, the retail stores that sell phones and provide in-person customer support, and the marketing spend that is key to customer attraction and retention. The CEO is considering acquiring a smaller competitor in order to gain market share. He would like our help thinking through this decision.

The president of a national drug-store chain is considering acquiring a large, national health insurance provider. The merger would combine one company’s network of pharmacies and pharmacy management business with the health insurance operations of the other, vertically integrating the companies. He would like our help analyzing the potential benefits to customers and shareholders.

When you get this type of case, ask your interviewer why the company is considering the merger or acquisition. They may provide key information on the size and attractiveness of the market the target company is in. Assuming the target company is in a large, attractive market and has the critical capabilities required to succeed in that market, then you should consider whether it is better to build the new business internally or undertake a merger or acquisition. 

If two companies are considering a merger, they still have to persuade their shareholders that the 2 companies would be more valuable working together than on their own. The value the companies can create by working together is called  synergy .

Synergies from a merger or acquisition can be on the cost side, the revenue side, or both. Cost synergies include leveraging fixed costs across more business or cutting costs duplicated in both firms’ operations. Revenue side synergies include selling a broader range of products through the existing sales force or distribution channel. 

The synergies created by the merger or acquisition must be greater than the premium that must be paid to secure the deal in order for the transaction to make sense.

Integration

Mergers and acquisitions are large and complicated transactions. They require  integrating  the talent, systems, policies, and processes of the 2 organizations. Synergies that look good on PowerPoint slides do not always accrue in real life. In addition, key employees may quit during the disruption and uncertainty the M&A activity causes. Even if substantial synergies are identified, a company should consider whether it can successfully undertake the integration.

Regulatory Approval

Lastly, mergers of large companies in regulated markets (financial services, telecommunications) and concentrated markets (ones with only a few large competitors) can require government approval . The possibility of the government blocking the merger or acquisition should be considered in this type of case.

Cost Optimization

A top-3 home improvement retailer has seen price increases from several of its vendors, squeezing its bottom line. The company wants to know how it can cut costs to restore its margins to their previous levels.

The head of an automobile manufacturer has seen its production costs rise over the last several years. She wants your help in turning around this trend.

The most important thing to understand when addressing this type of case is what is going on with fixed costs and variable costs . The costs can be broken down and compared to competitors’ costs or costs in prior years to identify opportunities for improvement.

As a reminder, here are the definitions of fixed and variable costs:

Fixed Costs

Costs that you incur just because you are in business regardless of how many units you sell. Examples: factory rent, equipment depreciation, compensation for salaried employees, and property taxes. A way to think about fixed costs is that a cost that does not change over the short-term, even if a business experiences increases or decreases in its sales volume.

Variable Costs

Costs that only incur when you begin to produce units (if you sell nothing you have no variable costs). Examples: sales commissions, credit card transaction costs, and sales taxes. A way to think about variable costs is that a cost that does change over the short-term. More sales volume will mean more variable costs.

Startup / Early-Stage Venture

Startup and early-stage venture cases have some similarities to market entry cases. 

Ensuring that the market the company is going after is big enough and has high enough margins to be attractive is important, as is understanding their competition. 

Startups are small, nimble companies with only a handful of key employees and limited access to cash. These factors need to be taken into account.

A student from Iceland studying in the U.S. has determined there’s a big opportunity to bring Icelandic-style yogurt to this market. How would you recommend he proceed?

A software company has developed video technology that can be used to quickly and easily create short videos that can be sent to a colleague in place of typing a long email. This disruptive technology will take advantage of the cameras built into cell phones and laptops as well as consumers’ preference for watching a video rather than reading text. The company has a small number of beta customers and is looking for advice on how to ramp up their product to attract a wider audience.

When answering this type of case, focus on the key things that help these small, fast-growth ventures move with agility as they search for the product and business model that will attract customers and investors. 

The Right People

They need the right people —ones with product savvy, marketing savvy and investor savvy to make it. 

A Minimum Viable Product

They need a minimum viable product . This is an initial version of their product offering that will attract paying customers, allowing them earn money and to collect feedback that can be used to improve the product. It will also serve as a proof-of-concept to investors. 

A Business Plan

Start-up and early stage venture also need an initial business plan addressing how they will bring their product to market.

Non-Profitability Cases

Some might focus on charitable organization. Others might focus on businesses issues that don’t relate directly to profits, such as employee retention or understanding the competitive dynamics in an industry. 

An overview of how to approach non-profitability cases is found on this page .

This section focuses on key concepts to address in a few common types of non-profitability cases.

Lives Affected

Government agencies and charitable organizations don’t aim to maximize profits. Nonetheless, they do important work that affects many lives. 

They might hire a consulting company to help them improve their effectiveness, or a consulting firm might take on an important project for a charitable organization on a pro-bono basis. 

The state agency that administers the free summer lunch program for children of families under a certain income threshold wants to increase the reach of its program. How would you advise they approach this? 

Malaria is a devastating disease, affecting hundreds of millions of individuals each year. It’s transferred to humans by mosquitoes, with most of the cases occurring in South Asia and Sub-Saharan Africa. Though drugs to treat the disease exist, many in the affected regions don’t have access to or can’t afford these drugs. The disease is a strain on the economies of several nations, perpetuating the cycle of poverty. What can be done to alleviate this disease and its adverse economic effects?

Key Performance Indicators (KPIs)

A detailed example of how to approach a lives affected case is provided  here .  As discussed in that case, the key to answering this type of question is to find the key performance indicator (KPI) the organization is trying to improve. In the case of the first sample question above, this is the number of free lunches served to needy children. 

Benchmarking

Once you’ve established the KPI, the case can be answered in the same way you’d answer any case question on business improvement. You can benchmark the organization’s performance by looking at trends in the KPI over time or comparing the growth of the organization’s KPI to that of other organizations serving the same target population to assess whether the agency is doing a good job meeting their mandate or falling behind. If they are falling behind, drill down into the factors that might be causing them to do so.

Cases focused on employee retention are not directly about profits, though the loss of key skills when employees depart and the cost of training new hires require hurts the profitability of organizations with high turnover. 

A fast-food chain is experiencing an increase in the already-high rate of employee turnover typical in its industry. It’s also experiencing trouble attracting qualified new employees. What would you suggest?

The school system in a middle-class suburban town is experiencing higher-than-normal rates of teacher attrition. With a tight budget, they are unable to simply raise salaries to hold onto experienced teachers. What options does the school system have for increasing teacher retention?

Conducting retention interviews —interviews with departing employees to find out why they’re leaving the organization—is a standard practice in most organizations. Because of this, there should be data available on what employees like about their jobs, don’t like about their jobs, why they looked for new opportunities and what new job they’re taking. Ask your interviewer for this information, as well as survey data on the job satisfaction of all employees. It can be used to develop a multi-pronged approach to improving employee retention.

• Look for opportunities to enhance aspects of the job that appeal to employees and change the negative aspects of working for the organization. For instance: What about the job is appealing? 
• Do employees see the work of the organization positively impacting the broader community? 
• Do employees like their colleagues, recognition they receive from management, the financial package provided? 

Industry Landscape and Competitive Dynamics

Cases focused on the landscape of an industry and its competitive dynamics are about the big-picture strategic issues that must be taken into account to compete effectively in that industry.

The traditional newspaper industry is facing heavy pressure from free online news organizations that don’t face the cost of printing a traditional newspaper and are able to leverage Internet ads as a source of revenue. The publisher of an award-winning regional paper would like your help in assessing and responding to this new threat.

The food and beverage industry faces disruption to their traditional brands as organic and small-batch products gain favor with consumers. How should companies in this industry respond to this new of competitive threat?

When analyzing this kind of case, first look for what is changing in the industry —consumer preferences, brand loyalty, barriers to entering the market, regulation, the industry’s cost structure, etc. Ensure you know what the source of change is before you begin to look for a strategy to help the client succeed in the new marketplace. 

For tips on structuring a case like these, visit the  Business Frameworks page . SWOT analysis and other frameworks include some factors to consider in this type of consulting case interview question.

Market Sizing Questions (Also Called Dinner Conversation Cases)

Market sizing cases are focused on establishing the size of a market in terms of annual revenue or the number of units sold rather than determining how to compete successfully in the market. 

Consulting firms often ask market sizing questions early in the consulting interview process or in interviews of undergraduate students who may not have a deep business background. 

They can also be one component of complicated, multi-step cases in later-round interviews. Market sizing questions focus on making logical estimates, showing creativity, and doing basic math.  

What is the size of the market for organic toothpaste in the United States?

How many golf balls would fit inside the Empire State building?

What Are Consulting Interviewers Looking for on Market Sizing Cases?

With case interview questions of this type, you’re not expected to know the answer, but instead to show a logical way of deducing it. Committing a few key facts to memory would serve you well. For example, knowing the population of the United States (or the country you live in) would give you a good place to start as you think through the size of the market for various retail goods. Gross domestic product can help with sizing industrial markets.

Key Statistics to Know for Market Sizing Case Questions:

The Population of the United States 2019 – 329 million according to the US Census Bureau .

World population in 2015 – 7.4 billion according to the United Nations DESA / Populations Division .

2018 Gross Domestic Product of the United States – $20.5 trillion according to the Bureau of Economic Analysis of the U.S. Department of Commerce .

Statistics like these give you a good foundation to start your market size analysis. For instance, you could begin estimating the size of the U.S. market for organic toothpaste with the US population. From there, make logical assumptions:

• How many times a day does the average American brushes their teeth?
• How many toothpaste applications are in the average tube of toothpaste?
• How much does the average tube of toothpaste cost?

These assumptions will allow you to calculate the size of the overall toothpaste market in terms of annual revenue. To get to the annual revenue of organic toothpaste you’ll also need to estimate:

• What portion of toothpaste consumers prefers organic toothpaste?

You can (and should) bring paper and a pen into consulting interviews. Use these to keep track of your assumptions as you work through them and to do the basic math required to come to a conclusion.

 Our Market Sizing Questions article has a list of the 7 steps to answering this type of question.

Key Things to Remember When Answering a Market Sizing Question:

• Ask clarifying questions. Does the interviewer want the market size in terms of dollars or units? For the United States, North America, the world?
• Use round numbers for simplicity. For instance, using $20 trillion for U.S. GDP rather than $20.5 would be fine.
• Creativity in your approach to approximating the market is important, but so is good sense. Don’t be so creative that your answer lacks credibility.
• Practice case math so you can do it quickly and correctly even under the stress of an interview.
• Give your answer a sniff-test at the end. Does it make sense? This will both show that you are careful in your analysis and give you the chance to fix an arithmetic mistake if you find you’re way off. 

Case Interview Math (also known as consulting math)

Management consulting interviewers screen candidates to ensure that they can do basic math. 

Don’t worry if you didn’t ace multivariate calculus, the math is usually basic arithmetic—addition, subtraction, multiplication, division and fractions/percentages. You may also be asked to extract data from charts and convert from one unit of measure to another.

As mentioned in the discussion of market-sizing case questions above, you can and should bring a paper and pen into the interview. It’s fine to write out your calculations.

Consulting Math Example

In each step, we’ll provide a sense of how we are making the estimate so that the interviewer knows we’re not just grabbing a number out of the air. We want our answer to be as grounded in fact as possible. 

The population of the United States: 329 million. We’ll round to 330 million for simplicity.

The number of times the average American brushes their teeth – 2 times per day. Some people brush at lunchtime too, but that’s probably offset by people who only brush once a day.

330 million people brushing 2x’s per day gives us 660 million toothpaste applications/day.

To get to an annual number of toothpaste applications, we need to multiply by 365. That’s 241 billion toothpaste applications. We’ll round to 240 billion for simplicity.

A tube of toothpaste usually lasts me about 2 months. That means we need to divide by 120 toothpaste applications per tube to come up with the number of tubes sold annually (2 months x 30 days/month x 2 applications/day). 240 billion toothpaste applications / 120 applications per tube = 2 billion tubes of toothpaste sold in the U.S. every year.

The cost of toothpaste ranges from $1 for inexpensive brands to $4 for expensive brands, but the average cost is probably about $2. This means the total revenue for toothpaste sold in the U.S. is 2 billion tubes x $2 or $4 billion.

The percent of the toothpaste market that’s organic is a little tricky to estimate. In the grocery store I shop in, there’s 1 aisle of organic goods in a store that has 20 aisles – that means organic products make up 5% of shelf space (and presumably also of sales). 

I think that people would be less likely to buy organic toothpaste than organic food, because you eat organic food, but you spit organic toothpaste out into the sink. Organic products always cost more and organic toothpaste doesn’t seem quite as important to your health. 

Conclusion: Based on that, I’ll say that 1% of the market for toothpaste is organic, so if $4 billion in toothpaste is sold in the U.S. every year, $40 million of it is organic toothpaste.

Is our answer right? 

Probably not exactly. There are different sizes of toothpaste tubes, a complication that we did not consider in this analysis. There might be some people who don’t brush their teeth every day. That would mean that we overestimated consumption. 

But our estimate of the market size for organic toothpaste is reasonable and grounded in logical assumptions. We could sniff-test our answer by comparing it to a market size we know, or to GDP, one of the facts we suggested having in your back pocket for market sizing case questions. 

U.S. GDP was about $20 trillion in 2018. Our estimations suggest that the overall toothpaste market is $4 billion. That means toothpaste is 1/5,000 of the U.S. economy, and the market for organic toothpaste is 1% of that. 

That sounds plausible. If your answer showed that the market for organic toothpaste was larger than U.S. GDP, it would be a clear indication that you made a mistake somewhere along the way.

For the 4 types of math problems you’ll be asked to compute as part of case studies, read Case Interview Math.

Above, we’ve provided you with 11 different types of case interview questions you might be asked during your consulting interviews. We’ve also told you that you need to get great at doing case math. 

Overwhelming? It can be.

But it doesn’t have to be.

The best way to prepare for your consulting case interviews is NOT to spend hundreds of hours reading every case study question and answer you can get your hands on. Instead, see our page on Case Interview Practice  to find out how to make the most of your interview prep time. In addition, check out this video where Davis Nguyen, Founder of My Consulting Offer, talks about how mastering the case interview is made easier when you focus on the most common types of cases. 

Here in an online workshop he conducted for  Columbia University, NYU, and Cornell students, you can see why this approach is so effective:

After studying the information on this page, you have an in-depth understanding of the types of cases you could be asked to analyze in consulting interviews. From Davis’s video, you know why this is so important to focus on the main types of cases. You’re well prepared to find a case study practice partner and begin practicing.

As you prepare for case interviews, you should use this page in conjunction with  Case Interview Examples , where you’ll find links to sample case study questions and their answers. Remember that while it is important to discuss all the appropriate aspects of a business case, it’s important to structure your analysis and your answer. Refer back to our page on  Case Interview Frameworks   to ensure that you’re not just practicing more cases, but doing them better.

If you still have questions, leave them in the comments below. We’ll ask our My Consulting Offer coaches and get back to you with answers.

• Market Sizing Questions ,
• Case Interview Workshop Video , and
• Written Case Interviews ,

Thanks for turning to My Consulting Offer for advice on case study interview prep. My Consulting Offer has helped almost 89.6% of the people we’ve worked with get a job in management consulting.  For example, here is how Thomas was able to get a BCG offer with just a short time to prepare..

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What Is a Case Study?

Weighing the pros and cons of this method of research

Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

Cara Lustik is a fact-checker and copywriter.

Verywell / Colleen Tighe

• Pros and Cons

What Types of Case Studies Are Out There?

Where do you find data for a case study, how do i write a psychology case study.

A case study is an in-depth study of one person, group, or event. In a case study, nearly every aspect of the subject's life and history is analyzed to seek patterns and causes of behavior. Case studies can be used in many different fields, including psychology, medicine, education, anthropology, political science, and social work.

The point of a case study is to learn as much as possible about an individual or group so that the information can be generalized to many others. Unfortunately, case studies tend to be highly subjective, and it is sometimes difficult to generalize results to a larger population.

While case studies focus on a single individual or group, they follow a format similar to other types of psychology writing. If you are writing a case study, we got you—here are some rules of APA format to reference.  

At a Glance

A case study, or an in-depth study of a person, group, or event, can be a useful research tool when used wisely. In many cases, case studies are best used in situations where it would be difficult or impossible for you to conduct an experiment. They are helpful for looking at unique situations and allow researchers to gather a lot of˜ information about a specific individual or group of people. However, it's important to be cautious of any bias we draw from them as they are highly subjective.

What Are the Benefits and Limitations of Case Studies?

A case study can have its strengths and weaknesses. Researchers must consider these pros and cons before deciding if this type of study is appropriate for their needs.

One of the greatest advantages of a case study is that it allows researchers to investigate things that are often difficult or impossible to replicate in a lab. Some other benefits of a case study:

• Allows researchers to capture information on the 'how,' 'what,' and 'why,' of something that's implemented
• Gives researchers the chance to collect information on why one strategy might be chosen over another
• Permits researchers to develop hypotheses that can be explored in experimental research

On the other hand, a case study can have some drawbacks:

• It cannot necessarily be generalized to the larger population
• Cannot demonstrate cause and effect
• It may not be scientifically rigorous
• It can lead to bias

Researchers may choose to perform a case study if they want to explore a unique or recently discovered phenomenon. Through their insights, researchers develop additional ideas and study questions that might be explored in future studies.

It's important to remember that the insights from case studies cannot be used to determine cause-and-effect relationships between variables. However, case studies may be used to develop hypotheses that can then be addressed in experimental research.

Case Study Examples

There have been a number of notable case studies in the history of psychology. Much of  Freud's work and theories were developed through individual case studies. Some great examples of case studies in psychology include:

• Anna O : Anna O. was a pseudonym of a woman named Bertha Pappenheim, a patient of a physician named Josef Breuer. While she was never a patient of Freud's, Freud and Breuer discussed her case extensively. The woman was experiencing symptoms of a condition that was then known as hysteria and found that talking about her problems helped relieve her symptoms. Her case played an important part in the development of talk therapy as an approach to mental health treatment.
• Phineas Gage : Phineas Gage was a railroad employee who experienced a terrible accident in which an explosion sent a metal rod through his skull, damaging important portions of his brain. Gage recovered from his accident but was left with serious changes in both personality and behavior.
• Genie : Genie was a young girl subjected to horrific abuse and isolation. The case study of Genie allowed researchers to study whether language learning was possible, even after missing critical periods for language development. Her case also served as an example of how scientific research may interfere with treatment and lead to further abuse of vulnerable individuals.

Such cases demonstrate how case research can be used to study things that researchers could not replicate in experimental settings. In Genie's case, her horrific abuse denied her the opportunity to learn a language at critical points in her development.

This is clearly not something researchers could ethically replicate, but conducting a case study on Genie allowed researchers to study phenomena that are otherwise impossible to reproduce.

There are a few different types of case studies that psychologists and other researchers might use:

• Collective case studies : These involve studying a group of individuals. Researchers might study a group of people in a certain setting or look at an entire community. For example, psychologists might explore how access to resources in a community has affected the collective mental well-being of those who live there.
• Descriptive case studies : These involve starting with a descriptive theory. The subjects are then observed, and the information gathered is compared to the pre-existing theory.
• Explanatory case studies : These   are often used to do causal investigations. In other words, researchers are interested in looking at factors that may have caused certain things to occur.
• Exploratory case studies : These are sometimes used as a prelude to further, more in-depth research. This allows researchers to gather more information before developing their research questions and hypotheses .
• Instrumental case studies : These occur when the individual or group allows researchers to understand more than what is initially obvious to observers.
• Intrinsic case studies : This type of case study is when the researcher has a personal interest in the case. Jean Piaget's observations of his own children are good examples of how an intrinsic case study can contribute to the development of a psychological theory.

The three main case study types often used are intrinsic, instrumental, and collective. Intrinsic case studies are useful for learning about unique cases. Instrumental case studies help look at an individual to learn more about a broader issue. A collective case study can be useful for looking at several cases simultaneously.

The type of case study that psychology researchers use depends on the unique characteristics of the situation and the case itself.

There are a number of different sources and methods that researchers can use to gather information about an individual or group. Six major sources that have been identified by researchers are:

• Archival records : Census records, survey records, and name lists are examples of archival records.
• Direct observation : This strategy involves observing the subject, often in a natural setting . While an individual observer is sometimes used, it is more common to utilize a group of observers.
• Documents : Letters, newspaper articles, administrative records, etc., are the types of documents often used as sources.
• Interviews : Interviews are one of the most important methods for gathering information in case studies. An interview can involve structured survey questions or more open-ended questions.
• Participant observation : When the researcher serves as a participant in events and observes the actions and outcomes, it is called participant observation.
• Physical artifacts : Tools, objects, instruments, and other artifacts are often observed during a direct observation of the subject.

If you have been directed to write a case study for a psychology course, be sure to check with your instructor for any specific guidelines you need to follow. If you are writing your case study for a professional publication, check with the publisher for their specific guidelines for submitting a case study.

Here is a general outline of what should be included in a case study.

Section 1: A Case History

This section will have the following structure and content:

Background information : The first section of your paper will present your client's background. Include factors such as age, gender, work, health status, family mental health history, family and social relationships, drug and alcohol history, life difficulties, goals, and coping skills and weaknesses.

Description of the presenting problem : In the next section of your case study, you will describe the problem or symptoms that the client presented with.

Describe any physical, emotional, or sensory symptoms reported by the client. Thoughts, feelings, and perceptions related to the symptoms should also be noted. Any screening or diagnostic assessments that are used should also be described in detail and all scores reported.

Your diagnosis : Provide your diagnosis and give the appropriate Diagnostic and Statistical Manual code. Explain how you reached your diagnosis, how the client's symptoms fit the diagnostic criteria for the disorder(s), or any possible difficulties in reaching a diagnosis.

Section 2: Treatment Plan

This portion of the paper will address the chosen treatment for the condition. This might also include the theoretical basis for the chosen treatment or any other evidence that might exist to support why this approach was chosen.

• Cognitive behavioral approach : Explain how a cognitive behavioral therapist would approach treatment. Offer background information on cognitive behavioral therapy and describe the treatment sessions, client response, and outcome of this type of treatment. Make note of any difficulties or successes encountered by your client during treatment.
• Humanistic approach : Describe a humanistic approach that could be used to treat your client, such as client-centered therapy . Provide information on the type of treatment you chose, the client's reaction to the treatment, and the end result of this approach. Explain why the treatment was successful or unsuccessful.
• Psychoanalytic approach : Describe how a psychoanalytic therapist would view the client's problem. Provide some background on the psychoanalytic approach and cite relevant references. Explain how psychoanalytic therapy would be used to treat the client, how the client would respond to therapy, and the effectiveness of this treatment approach.
• Pharmacological approach : If treatment primarily involves the use of medications, explain which medications were used and why. Provide background on the effectiveness of these medications and how monotherapy may compare with an approach that combines medications with therapy or other treatments.

This section of a case study should also include information about the treatment goals, process, and outcomes.

When you are writing a case study, you should also include a section where you discuss the case study itself, including the strengths and limitiations of the study. You should note how the findings of your case study might support previous research. 

In your discussion section, you should also describe some of the implications of your case study. What ideas or findings might require further exploration? How might researchers go about exploring some of these questions in additional studies?

Need More Tips?

Here are a few additional pointers to keep in mind when formatting your case study:

• Never refer to the subject of your case study as "the client." Instead, use their name or a pseudonym.
• Read examples of case studies to gain an idea about the style and format.
• Remember to use APA format when citing references .

Crowe S, Cresswell K, Robertson A, Huby G, Avery A, Sheikh A. The case study approach .  BMC Med Res Methodol . 2011;11:100.

Crowe S, Cresswell K, Robertson A, Huby G, Avery A, Sheikh A. The case study approach . BMC Med Res Methodol . 2011 Jun 27;11:100. doi:10.1186/1471-2288-11-100

Gagnon, Yves-Chantal.  The Case Study as Research Method: A Practical Handbook . Canada, Chicago Review Press Incorporated DBA Independent Pub Group, 2010.

Yin, Robert K. Case Study Research and Applications: Design and Methods . United States, SAGE Publications, 2017.

By Kendra Cherry, MSEd Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

10 Case Study Advantages and Disadvantages

A case study in academic research is a detailed and in-depth examination of a specific instance or event, generally conducted through a qualitative approach to data.

The most common case study definition that I come across is is Robert K. Yin’s (2003, p. 13) quote provided below:

“An empirical inquiry that investigates a contemporary phenomenon within its real-life context, especially when the boundaries between phenomenon and context are not clearly evident.”

Researchers conduct case studies for a number of reasons, such as to explore complex phenomena within their real-life context, to look at a particularly interesting instance of a situation, or to dig deeper into something of interest identified in a wider-scale project.

While case studies render extremely interesting data, they have many limitations and are not suitable for all studies. One key limitation is that a case study’s findings are not usually generalizable to broader populations because one instance cannot be used to infer trends across populations.

Case Study Advantages and Disadvantages

1. in-depth analysis of complex phenomena.

Case study design allows researchers to delve deeply into intricate issues and situations.

By focusing on a specific instance or event, researchers can uncover nuanced details and layers of understanding that might be missed with other research methods, especially large-scale survey studies.

As Lee and Saunders (2017) argue,

“It allows that particular event to be studies in detail so that its unique qualities may be identified.”

This depth of analysis can provide rich insights into the underlying factors and dynamics of the studied phenomenon.

2. Holistic Understanding

Building on the above point, case studies can help us to understand a topic holistically and from multiple angles.

This means the researcher isn’t restricted to just examining a topic by using a pre-determined set of questions, as with questionnaires. Instead, researchers can use qualitative methods to delve into the many different angles, perspectives, and contextual factors related to the case study.

We can turn to Lee and Saunders (2017) again, who notes that case study researchers “develop a deep, holistic understanding of a particular phenomenon” with the intent of deeply understanding the phenomenon.

3. Examination of rare and Unusual Phenomena

We need to use case study methods when we stumble upon “rare and unusual” (Lee & Saunders, 2017) phenomena that would tend to be seen as mere outliers in population studies.

Take, for example, a child genius. A population study of all children of that child’s age would merely see this child as an outlier in the dataset, and this child may even be removed in order to predict overall trends.

So, to truly come to an understanding of this child and get insights into the environmental conditions that led to this child’s remarkable cognitive development, we need to do an in-depth study of this child specifically – so, we’d use a case study.

4. Helps Reveal the Experiences of Marginalzied Groups

Just as rare and unsual cases can be overlooked in population studies, so too can the experiences, beliefs, and perspectives of marginalized groups.

As Lee and Saunders (2017) argue, “case studies are also extremely useful in helping the expression of the voices of people whose interests are often ignored.”

Take, for example, the experiences of minority populations as they navigate healthcare systems. This was for many years a “hidden” phenomenon, not examined by researchers. It took case study designs to truly reveal this phenomenon, which helped to raise practitioners’ awareness of the importance of cultural sensitivity in medicine.

5. Ideal in Situations where Researchers cannot Control the Variables

Experimental designs – where a study takes place in a lab or controlled environment – are excellent for determining cause and effect . But not all studies can take place in controlled environments (Tetnowski, 2015).

When we’re out in the field doing observational studies or similar fieldwork, we don’t have the freedom to isolate dependent and independent variables. We need to use alternate methods.

Case studies are ideal in such situations.

A case study design will allow researchers to deeply immerse themselves in a setting (potentially combining it with methods such as ethnography or researcher observation) in order to see how phenomena take place in real-life settings.

6. Supports the generation of new theories or hypotheses

While large-scale quantitative studies such as cross-sectional designs and population surveys are excellent at testing theories and hypotheses on a large scale, they need a hypothesis to start off with!

This is where case studies – in the form of grounded research – come in. Often, a case study doesn’t start with a hypothesis. Instead, it ends with a hypothesis based upon the findings within a singular setting.

The deep analysis allows for hypotheses to emerge, which can then be taken to larger-scale studies in order to conduct further, more generalizable, testing of the hypothesis or theory.

7. Reveals the Unexpected

When a largescale quantitative research project has a clear hypothesis that it will test, it often becomes very rigid and has tunnel-vision on just exploring the hypothesis.

Of course, a structured scientific examination of the effects of specific interventions targeted at specific variables is extermely valuable.

But narrowly-focused studies often fail to shine a spotlight on unexpected and emergent data. Here, case studies come in very useful. Oftentimes, researchers set their eyes on a phenomenon and, when examining it closely with case studies, identify data and come to conclusions that are unprecedented, unforeseen, and outright surprising.

As Lars Meier (2009, p. 975) marvels, “where else can we become a part of foreign social worlds and have the chance to become aware of the unexpected?”

Disadvantages

1. not usually generalizable.

Case studies are not generalizable because they tend not to look at a broad enough corpus of data to be able to infer that there is a trend across a population.

As Yang (2022) argues, “by definition, case studies can make no claims to be typical.”

Case studies focus on one specific instance of a phenomenon. They explore the context, nuances, and situational factors that have come to bear on the case study. This is really useful for bringing to light important, new, and surprising information, as I’ve already covered.

But , it’s not often useful for generating data that has validity beyond the specific case study being examined.

2. Subjectivity in interpretation

Case studies usually (but not always) use qualitative data which helps to get deep into a topic and explain it in human terms, finding insights unattainable by quantitative data.

But qualitative data in case studies relies heavily on researcher interpretation. While researchers can be trained and work hard to focus on minimizing subjectivity (through methods like triangulation), it often emerges – some might argue it’s innevitable in qualitative studies.

So, a criticism of case studies could be that they’re more prone to subjectivity – and researchers need to take strides to address this in their studies.

3. Difficulty in replicating results

Case study research is often non-replicable because the study takes place in complex real-world settings where variables are not controlled.

So, when returning to a setting to re-do or attempt to replicate a study, we often find that the variables have changed to such an extent that replication is difficult. Furthermore, new researchers (with new subjective eyes) may catch things that the other readers overlooked.

Replication is even harder when researchers attempt to replicate a case study design in a new setting or with different participants.

Comprehension Quiz for Students

Question 1: What benefit do case studies offer when exploring the experiences of marginalized groups?

a) They provide generalizable data. b) They help express the voices of often-ignored individuals. c) They control all variables for the study. d) They always start with a clear hypothesis.

Question 2: Why might case studies be considered ideal for situations where researchers cannot control all variables?

a) They provide a structured scientific examination. b) They allow for generalizability across populations. c) They focus on one specific instance of a phenomenon. d) They allow for deep immersion in real-life settings.

Question 3: What is a primary disadvantage of case studies in terms of data applicability?

a) They always focus on the unexpected. b) They are not usually generalizable. c) They support the generation of new theories. d) They provide a holistic understanding.

Question 4: Why might case studies be considered more prone to subjectivity?

a) They always use quantitative data. b) They heavily rely on researcher interpretation, especially with qualitative data. c) They are always replicable. d) They look at a broad corpus of data.

Question 5: In what situations are experimental designs, such as those conducted in labs, most valuable?

a) When there’s a need to study rare and unusual phenomena. b) When a holistic understanding is required. c) When determining cause-and-effect relationships. d) When the study focuses on marginalized groups.

Question 6: Why is replication challenging in case study research?

a) Because they always use qualitative data. b) Because they tend to focus on a broad corpus of data. c) Due to the changing variables in complex real-world settings. d) Because they always start with a hypothesis.

Lee, B., & Saunders, M. N. K. (2017). Conducting Case Study Research for Business and Management Students. SAGE Publications.

Meir, L. (2009). Feasting on the Benefits of Case Study Research. In Mills, A. J., Wiebe, E., & Durepos, G. (Eds.). Encyclopedia of Case Study Research (Vol. 2). London: SAGE Publications.

Tetnowski, J. (2015). Qualitative case study research design.  Perspectives on fluency and fluency disorders ,  25 (1), 39-45. ( Source )

Yang, S. L. (2022). The War on Corruption in China: Local Reform and Innovation . Taylor & Francis.

Yin, R. (2003). Case Study research. Thousand Oaks, CA: Sage.

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• Chris Drew (PhD) https://helpfulprofessor.com/author/chris-drew-phd/ 5 Top Tips for Succeeding at University
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7 Common Mistakes Found in Case Studies

• December 5, 2022
• Creating Case Studies

Seemingly small mistakes in a Case Study can result in unpleasant consequences—even legal trouble. We talk a lot on this blog about how to make great Case Studies, but in this article, we address where Case Studies often go wrong and how to steer clear of those problems.

Common Mistakes in Case Studies—and How to Avoid Them

The following mistakes concerning Case Studies can jeopardize your sales and marketing success.

Poor Choice of Case Study Subject

What it means: A good Case Study Subject is not necessarily the most charismatic raconteur you can find (although it might not hurt!). Rather, a good Case Study Subject is a client with a powerful story to share. You should have solved some of your clients’ major pain points before approaching any of them for an interview.

How to avoid it: Skip clients who are well-known, global entities; brand-new customers; or those who’ve experienced unintentional/unexpected results. Focus on those who have seen transformative, concrete results thanks to your solution. (Click here to learn more.)

Weak Interview Skills

What it means: It’s a mistake to blame a bad Case Study interview on a shy, nervous subject. In truth, a good interviewer can extract a compelling story from anyone by putting the subject at ease and asking the right questions. A bad interviewer lacks curiosity, asks yes-or-no questions, and doesn’t ask follow-up queries that really get to the heart of what’s going on.

How to avoid it: What exactly are these “right questions” the interviewer should ask? There’s no quick, magic, one-size-fits-all answer—it’s up to the interviewer to dig deep and prompt the subject for meaningful details. We do have a few recommendations for how to proceed though! ( Psst: If you really hone your interview skills and use quality recording tools, you can maximize a single interview to create several B2B assets—not just a Case Study.)

No Investment in Editing

What it means: No matter how fantastic you are as a writer, your writing needs to be edited. An editor will perform a fact-check and employ ways to improve the text, such as fixing an errant typo all the way to completely rearranging the content to make for a more logical, compelling read. Sometimes people skip this step, but how do you think your business is going to come across to prospects reading a poorly organized, boring Case Study riddled with typos and misspelled names?

How to avoid it: Have someone with editing and proofreading experience edit and proof your Case Study. Hire a freelancer with a relevant background if you don’t already have someone with the right skills on your team.

Underwhelming Design

What it means: Conceivably, you’re creating Case Studies to drum up business, right? In that case, they need to look as good as they read. The layout of the Case Study serves as a powerful first impression, so make sure it’s a good one.

How to avoid it: Invest in making your Case Study look professional, visually interesting/attractive, and on brand. Contract an experienced designer, or review our design suggestions if you’re tackling this in-house.

No Approvals or Permissions

What it means: This is one of the most grievous mistakes you can make with your Case Study. Not getting explicit approvals from your clients to use their information, quotes, and photos in your Case Studies could lead to, at best, damaged client relations and at worst, legal action.

How to avoid it: Always get your clients’ approval in writing to use their company names, names of any mentioned personnel, logos, and identifying images and descriptions. Also, make sure they fully understand how the Case Study will be used once it’s completed and that they review and approve the content before it’s considered finalized.

Inappropriate Use

What it means: Are you fully maximizing the use of your Case Study, or is it getting dusty in an unseen corner of your website, just waiting for prospects to stumble across it? A completed Case Study is meaningless unless it’s applied in the right way in the right circumstances.

How to avoid it: Read our blog for ideas on using Case Studies in the sales process and marketing and social media campaigns.

Want to sidestep Case Study mistakes altogether? Trust SuccessKit with creating your B2B content. Contact us at [email protected] to learn more.

Stef Mates, SuccessKit's Creative Director, has been writing, designing, editing, and managing a variety of content types for several different industries for more than 15 years. She started at the company as a freelancer in November 2019 and became an official part of the team in June 2021.

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Case study: 33-year-old female presents with chronic sob and cough.

Sandeep Sharma ; Muhammad F. Hashmi ; Deepa Rawat .

Affiliations

Last Update: February 20, 2023 .

• Case Presentation

History of Present Illness:  A 33-year-old white female presents after admission to the general medical/surgical hospital ward with a chief complaint of shortness of breath on exertion. She reports that she was seen for similar symptoms previously at her primary care physician’s office six months ago. At that time, she was diagnosed with acute bronchitis and treated with bronchodilators, empiric antibiotics, and a short course oral steroid taper. This management did not improve her symptoms, and she has gradually worsened over six months. She reports a 20-pound (9 kg) intentional weight loss over the past year. She denies camping, spelunking, or hunting activities. She denies any sick contacts. A brief review of systems is negative for fever, night sweats, palpitations, chest pain, nausea, vomiting, diarrhea, constipation, abdominal pain, neural sensation changes, muscular changes, and increased bruising or bleeding. She admits a cough, shortness of breath, and shortness of breath on exertion.

Social History: Her tobacco use is 33 pack-years; however, she quit smoking shortly prior to the onset of symptoms, six months ago. She denies alcohol and illicit drug use. She is in a married, monogamous relationship and has three children aged 15 months to 5 years. She is employed in a cookie bakery. She has two pet doves. She traveled to Mexico for a one-week vacation one year ago.

Allergies:  No known medicine, food, or environmental allergies.

Past Medical History: Hypertension

Past Surgical History: Cholecystectomy

Medications: Lisinopril 10 mg by mouth every day

Physical Exam:

Vitals: Temperature, 97.8 F; heart rate 88; respiratory rate, 22; blood pressure 130/86; body mass index, 28

General: She is well appearing but anxious, a pleasant female lying on a hospital stretcher. She is conversing freely, with respiratory distress causing her to stop mid-sentence.

Respiratory: She has diffuse rales and mild wheezing; tachypneic.

Cardiovascular: She has a regular rate and rhythm with no murmurs, rubs, or gallops.

Gastrointestinal: Bowel sounds X4. No bruits or pulsatile mass.

• Initial Evaluation

Laboratory Studies:  Initial work-up from the emergency department revealed pancytopenia with a platelet count of 74,000 per mm3; hemoglobin, 8.3 g per and mild transaminase elevation, AST 90 and ALT 112. Blood cultures were drawn and currently negative for bacterial growth or Gram staining.

Chest X-ray

Impression:  Mild interstitial pneumonitis

• Differential Diagnosis
• Aspiration pneumonitis and pneumonia
• Bacterial pneumonia
• Immunodeficiency state and Pneumocystis jiroveci pneumonia
• Carcinoid lung tumors
• Tuberculosis
• Viral pneumonia
• Chlamydial pneumonia
• Coccidioidomycosis and valley fever
• Recurrent Legionella pneumonia
• Mediastinal cysts
• Mediastinal lymphoma
• Recurrent mycoplasma infection
• Pancoast syndrome
• Pneumococcal infection
• Sarcoidosis
• Small cell lung cancer
• Aspergillosis
• Blastomycosis
• Histoplasmosis
• Actinomycosis
• Confirmatory Evaluation

CT of the chest was performed to further the pulmonary diagnosis; it showed a diffuse centrilobular micronodular pattern without focal consolidation.

On finding pulmonary consolidation on the CT of the chest, a pulmonary consultation was obtained. Further history was taken, which revealed that she has two pet doves. As this was her third day of broad-spectrum antibiotics for a bacterial infection and she was not getting better, it was decided to perform diagnostic bronchoscopy of the lungs with bronchoalveolar lavage to look for any atypical or rare infections and to rule out malignancy (Image 1).

Bronchoalveolar lavage returned with a fluid that was cloudy and muddy in appearance. There was no bleeding. Cytology showed Histoplasma capsulatum .

Based on the bronchoscopic findings, a diagnosis of acute pulmonary histoplasmosis in an immunocompetent patient was made.

Pulmonary histoplasmosis in asymptomatic patients is self-resolving and requires no treatment. However, once symptoms develop, such as in our above patient, a decision to treat needs to be made. In mild, tolerable cases, no treatment other than close monitoring is necessary. However, once symptoms progress to moderate or severe, or if they are prolonged for greater than four weeks, treatment with itraconazole is indicated. The anticipated duration is 6 to 12 weeks total. The response should be monitored with a chest x-ray. Furthermore, observation for recurrence is necessary for several years following the diagnosis. If the illness is determined to be severe or does not respond to itraconazole, amphotericin B should be initiated for a minimum of 2 weeks, but up to 1 year. Cotreatment with methylprednisolone is indicated to improve pulmonary compliance and reduce inflammation, thus improving work of respiration. [1] [2] [3]

Histoplasmosis, also known as Darling disease, Ohio valley disease, reticuloendotheliosis, caver's disease, and spelunker's lung, is a disease caused by the dimorphic fungi  Histoplasma capsulatum native to the Ohio, Missouri, and Mississippi River valleys of the United States. The two phases of Histoplasma are the mycelial phase and the yeast phase.

Etiology/Pathophysiology 

Histoplasmosis is caused by inhaling the microconidia of  Histoplasma  spp. fungus into the lungs. The mycelial phase is present at ambient temperature in the environment, and upon exposure to 37 C, such as in a host’s lungs, it changes into budding yeast cells. This transition is an important determinant in the establishment of infection. Inhalation from soil is a major route of transmission leading to infection. Human-to-human transmission has not been reported. Infected individuals may harbor many yeast-forming colonies chronically, which remain viable for years after initial inoculation. The finding that individuals who have moved or traveled from endemic to non-endemic areas may exhibit a reactivated infection after many months to years supports this long-term viability. However, the precise mechanism of reactivation in chronic carriers remains unknown.

Infection ranges from an asymptomatic illness to a life-threatening disease, depending on the host’s immunological status, fungal inoculum size, and other factors. Histoplasma  spp. have grown particularly well in organic matter enriched with bird or bat excrement, leading to the association that spelunking in bat-feces-rich caves increases the risk of infection. Likewise, ownership of pet birds increases the rate of inoculation. In our case, the patient did travel outside of Nebraska within the last year and owned two birds; these are her primary increased risk factors. [4]

Non-immunocompromised patients present with a self-limited respiratory infection. However, the infection in immunocompromised hosts disseminated histoplasmosis progresses very aggressively. Within a few days, histoplasmosis can reach a fatality rate of 100% if not treated aggressively and appropriately. Pulmonary histoplasmosis may progress to a systemic infection. Like its pulmonary counterpart, the disseminated infection is related to exposure to soil containing infectious yeast. The disseminated disease progresses more slowly in immunocompetent hosts compared to immunocompromised hosts. However, if the infection is not treated, fatality rates are similar. The pathophysiology for disseminated disease is that once inhaled, Histoplasma yeast are ingested by macrophages. The macrophages travel into the lymphatic system where the disease, if not contained, spreads to different organs in a linear fashion following the lymphatic system and ultimately into the systemic circulation. Once this occurs, a full spectrum of disease is possible. Inside the macrophage, this fungus is contained in a phagosome. It requires thiamine for continued development and growth and will consume systemic thiamine. In immunocompetent hosts, strong cellular immunity, including macrophages, epithelial, and lymphocytes, surround the yeast buds to keep infection localized. Eventually, it will become calcified as granulomatous tissue. In immunocompromised hosts, the organisms disseminate to the reticuloendothelial system, leading to progressive disseminated histoplasmosis. [5] [6]

Symptoms of infection typically begin to show within three to17 days. Immunocompetent individuals often have clinically silent manifestations with no apparent ill effects. The acute phase of infection presents as nonspecific respiratory symptoms, including cough and flu. A chest x-ray is read as normal in 40% to 70% of cases. Chronic infection can resemble tuberculosis with granulomatous changes or cavitation. The disseminated illness can lead to hepatosplenomegaly, adrenal enlargement, and lymphadenopathy. The infected sites usually calcify as they heal. Histoplasmosis is one of the most common causes of mediastinitis. Presentation of the disease may vary as any other organ in the body may be affected by the disseminated infection. [7]

The clinical presentation of the disease has a wide-spectrum presentation which makes diagnosis difficult. The mild pulmonary illness may appear as a flu-like illness. The severe form includes chronic pulmonary manifestation, which may occur in the presence of underlying lung disease. The disseminated form is characterized by the spread of the organism to extrapulmonary sites with proportional findings on imaging or laboratory studies. The Gold standard for establishing the diagnosis of histoplasmosis is through culturing the organism. However, diagnosis can be established by histological analysis of samples containing the organism taken from infected organs. It can be diagnosed by antigen detection in blood or urine, PCR, or enzyme-linked immunosorbent assay. The diagnosis also can be made by testing for antibodies again the fungus. [8]

Pulmonary histoplasmosis in asymptomatic patients is self-resolving and requires no treatment. However, once symptoms develop, such as in our above patient, a decision to treat needs to be made. In mild, tolerable cases, no treatment other than close monitoring is necessary. However, once symptoms progress to moderate or severe or if they are prolonged for greater than four weeks, treatment with itraconazole is indicated. The anticipated duration is 6 to 12 weeks. The patient's response should be monitored with a chest x-ray. Furthermore, observation for recurrence is necessary for several years following the diagnosis. If the illness is determined to be severe or does not respond to itraconazole, amphotericin B should be initiated for a minimum of 2 weeks, but up to 1 year. Cotreatment with methylprednisolone is indicated to improve pulmonary compliance and reduce inflammation, thus improving the work of respiration.

The disseminated disease requires similar systemic antifungal therapy to pulmonary infection. Additionally, procedural intervention may be necessary, depending on the site of dissemination, to include thoracentesis, pericardiocentesis, or abdominocentesis. Ocular involvement requires steroid treatment additions and necessitates ophthalmology consultation. In pericarditis patients, antifungals are contraindicated because the subsequent inflammatory reaction from therapy would worsen pericarditis.

Patients may necessitate intensive care unit placement dependent on their respiratory status, as they may pose a risk for rapid decompensation. Should this occur, respiratory support is necessary, including non-invasive BiPAP or invasive mechanical intubation. Surgical interventions are rarely warranted; however, bronchoscopy is useful as both a diagnostic measure to collect sputum samples from the lung and therapeutic to clear excess secretions from the alveoli. Patients are at risk for developing a coexistent bacterial infection, and appropriate antibiotics should be considered after 2 to 4 months of known infection if symptoms are still present. [9]

Prognosis 

If not treated appropriately and in a timely fashion, the disease can be fatal, and complications will arise, such as recurrent pneumonia leading to respiratory failure, superior vena cava syndrome, fibrosing mediastinitis, pulmonary vessel obstruction leading to pulmonary hypertension and right-sided heart failure, and progressive fibrosis of lymph nodes. Acute pulmonary histoplasmosis usually has a good outcome on symptomatic therapy alone, with 90% of patients being asymptomatic. Disseminated histoplasmosis, if untreated, results in death within 2 to 24 months. Overall, there is a relapse rate of 50% in acute disseminated histoplasmosis. In chronic treatment, however, this relapse rate decreases to 10% to 20%. Death is imminent without treatment.

• Pearls of Wisdom

While illnesses such as pneumonia are more prevalent, it is important to keep in mind that more rare diseases are always possible. Keeping in mind that every infiltrates on a chest X-ray or chest CT is not guaranteed to be simple pneumonia. Key information to remember is that if the patient is not improving under optimal therapy for a condition, the working diagnosis is either wrong or the treatment modality chosen by the physician is wrong and should be adjusted. When this occurs, it is essential to collect a more detailed history and refer the patient for appropriate consultation with a pulmonologist or infectious disease specialist. Doing so, in this case, yielded workup with bronchoalveolar lavage and microscopic evaluation. Microscopy is invaluable for definitively diagnosing a pulmonary consolidation as exemplified here where the results showed small, budding, intracellular yeast in tissue sized 2 to 5 microns that were readily apparent on hematoxylin and eosin staining and minimal, normal flora bacterial growth. 

• Enhancing Healthcare Team Outcomes

This case demonstrates how all interprofessional healthcare team members need to be involved in arriving at a correct diagnosis. Clinicians, specialists, nurses, pharmacists, laboratory technicians all bear responsibility for carrying out the duties pertaining to their particular discipline and sharing any findings with all team members. An incorrect diagnosis will almost inevitably lead to incorrect treatment, so coordinated activity, open communication, and empowerment to voice concerns are all part of the dynamic that needs to drive such cases so patients will attain the best possible outcomes.

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Histoplasma Contributed by Sandeep Sharma, MD

Disclosure: Sandeep Sharma declares no relevant financial relationships with ineligible companies.

Disclosure: Muhammad Hashmi declares no relevant financial relationships with ineligible companies.

Disclosure: Deepa Rawat declares no relevant financial relationships with ineligible companies.

This book is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ), which permits others to distribute the work, provided that the article is not altered or used commercially. You are not required to obtain permission to distribute this article, provided that you credit the author and journal.

• Cite this Page Sharma S, Hashmi MF, Rawat D. Case Study: 33-Year-Old Female Presents with Chronic SOB and Cough. [Updated 2023 Feb 20]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-.

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Hilary Cass’s proposals are mostly common sense. She must reject anti-trans bias with the same clarity

By failing to take on clinicians who doubt the very existence of trans children and young people, the review lets down those it seeks to support

T he long-awaited Cass review of gender identity services (Gids) for children and young people is finally here, and people with a wide variety of views appear to be welcoming it. In more civil, fact-based times, in which transness was accepted as just another example of human variation, this outcome could be to its credit: appropriate for a review of clinical services by an expert clinician.

However, we do not live in such times. Instead, in recent years, the UK has fallen to 15th in European LGBT+ equality rankings (in 2016, the UK ranked third ) and was highlighted by the Council of Europe alongside Hungary, Turkey and Russia as a state where LGBT+ rights are under attack from political figures, including governments. We are also experiencing a steep rise in transgender hate crimes, which a UN report directly attributes to “the toxic nature of the public debate surrounding sexual orientation and gender identity”.

This context is important for understanding the Cass review’s rather confounding reception. Based on the coverage in the UK’s rightwing media, where equality for trans people is most loudly and regularly opposed, you might have been convinced that Hilary Cass agrees with them and them alone (The Daily Mail’s front page hailed her as “a voice of sanity”; the Times claimed the report “rejected” the use of puberty blockers outright). However, this is not the case.

Cass criticises Gids’ long waiting lists. My involuntary immersion in this topic for almost a decade enables me to report that the trans community fervently agrees with this, and has been sounding the alarm for years. Cass criticises the lack of broader mental health care provision, including treatment for eating disorders. The community agrees, as would anyone who knows the first thing about NHS mental health provision. Cass cites the lack of autism awareness and assessment. Again, the community – well aware and unafraid of our propensity for neurodivergence – agrees. Cass calls for more and more local Gids service provision. Unsurprisingly, the trans community agrees. Cass bemoans the lack of a peer-reviewed evidence base for trans healthcare. Right there with you, Doc (although there is plenty of research you decided to exclude).

I could go on, but you get the idea. The key words – read plainly and in good faith – can hardly be disagreed with either. Care for trans young people that is “unhurried, holistic, therapeutic, safe and effective”? What’s to dislike? This is only what prospective patients, patients and their parents and caregivers have been calling for all along.

In reality, the problem has never been disagreement about how to care for trans children and young people. Rather, individuals genuinely motivated to create such services have been effectively sidelined by an overwhelmingly more powerful coalition of politicians, journalists and, indeed, healthcare workers who are motivated by an anti-trans ideology – a need to assert and somehow “prove”, to exclusion of all other possibilities, that trans people like me do not, in fact, exist. And, therefore, that we do not spend the first 18 years of ours lives as children. What many trans adults like me fear is that Cass has fallen into the trap of reflecting and therefore given credence to anti-trans bias.

Take puberty blockers, for example. Young people hoping to be prescribed this previously-uncontroversial puberty delayer, including those I’ve been directly in contact with, usually have to wait so long for appointments that they age out of Gids before the conversation even starts. In 2022, 378 children and young people were eligible to be prescribed blockers on the NHS, a relatively small number by any measure. Likewise with masculinising or feminising hormones for under-18s. The review makes this sound like previously common practice. In reality, such a step would only be considered for someone aged 16-18 and is even rarer.

There are more insidious examples too. Cass makes reference to clinicians feeling unable to raise concerns about the slow and inadequate services being provided by Gids. Justin Webb on the Today programme asked whether this by all accounts legitimate criticism was stifled because clinicians feared being accused of “transphobia”. Cass goes some way to agreeing, but then focuses on conciliation, saying, that “whatever the reason” for clinicians’ concerns, she believes everyone was sincerely trying to do their best for their patients.

That failure to add context reflects a lack of context in the report itself: in which a picture is painted of clinicians who all want the best for their young patients, and have been let down by a lack of evidence. That is not a complete picture. Take Dr David Bell, the psychiatrist behind a critical report of the Tavistock centre , and who has welcomed the Cass review. Bell is often presented as a moderate critic of Gids and yet has argued that trans children do not exist in nature but have been invented , and that cases of gender dysphoria in children can be explained by confusion caused by sexuality, confusion caused by neurodiversity, confusion caused by abuse, trauma or mental health conditions but, crucially, never by that child being, either solely or in addition to other factors, transgender. He has described “top surgery” – shorthand that trans men use for a masculinising double-mastectomy – as “bizarre Orwellian newspeak”.

He has described gender-affirming surgeries for adults in Frankenstein terms, bemoaning people like me as “sterile and lifelong patients, many facing catastrophic complications”. I don’t really want to dignify this claim with a serious rebuttal, so suffice to say that regret rates for gender-affirming surgeries consistently hover around a whopping 1% .

Bell’s views are echoed by Julie Bindel, who, reacting to the review, says the idea of trans children is a “crazy fallacy”, calls people like me who believe in gender-affirming healthcare for trans children “fanatics in the grip of a demented doctrine” and likens us to Jimmy Savile, and thanks Cass for the “validation” her report provides. Last month, Bindel attended the conference of the Clinical Advisory Network on Sex and Gender, a gender-critical pressure group of which Bell is a member. In Bindel’s view, the group heroically opposes “the cruelty of inflicting a mass sexual experiment on children”.

These views fundamentally undermine trans people’s identities and the legal basis on which our rights to things like dignity, privacy and medical care are also protected. Failing to identify such extreme opinions and push back on them in a review focused on improving care for gender-questioning children and young people is unforgivable. Giving Cass the benefit of the doubt, perhaps simply stating that trans children and adults exist seemed too basic – but in the clinical and cultural context we’re operating in, it remains vital.

If the Cass review was held under a black light, we would see the fingerprints of anti-trans ideology. I don’t believe Cass shares this way of thinking, I think she believes in evidence-based healthcare and that trans children exist. However, allowing her review to be so heavily influenced by bias is a critical failure that is hers to own.

As her work is used, as it will be, to perpetuate a broader hostile environment towards trans people in the UK, the young people she has tried to help will, understandably, feel betrayed. I take this opportunity to implore her team to keep this in mind as she calls for a similar review of services for 17- to 25 - year-olds and potentially beyond. Trans adults also need holistic, safe care (doesn’t everyone?) but our clinics are in a dire state too, with up to five years to wait for a first appointment. Now, reviews hang over us too – about us but no one knows to what extent with us – that may become Trojan horses for those who would roll back or perhaps eradicate affirming trans healthcare from the NHS altogether.

Dr Cass, appeasement might get you through this short-term discomfort in the media spotlight, but please remember: it isn’t your healthcare, your rights or your everyday dignity they are trying to take away.

Freddy McConnell is a freelance journalist

Do you have an opinion on the issues raised in this article? If you would like to submit a response of up to 300 words by email to be considered for publication in our letters section, please click here .

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US measles cases are up in 2024. What’s driving the increase?

FILE - In this March 27, 2019, file photo, a woman receives a measles, mumps and rubella vaccine at the Rockland County Health Department in Pomona, N.Y. Measles outbreaks in the U.S. and abroad are raising health experts’ concern about the preventable, once-common childhood virus. The CDC on Thursday, April 11, 2024 released a report on recent measles case trends, noting that cases in the first three months of this year were 17 times higher than the average number seen in the first three months of the previous three years. (AP Photo/Seth Wenig, File)

This undated image made available by the Centers for Disease Control and Prevention on Feb. 4, 2015 shows an electron microscope image of a measles virus particle, center. Measles outbreaks in the U.S. and abroad are raising health experts’ concern about the preventable, once-common childhood virus. The CDC on Thursday, April 11, 2024 released a report on recent measles case trends, noting that cases in the first three months of this year were 17 times higher than the average number seen in the first three months of the previous three years. (Cynthia Goldsmith/Centers for Disease Control and Prevention via AP)

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Measles outbreaks in the U.S. and abroad are raising health experts’ concern about the preventable, once-common childhood virus.

One of the world’s most contagious diseases, measles can lead to potentially serious complications. The best defense, according to experts? Get vaccinated.

Here’s what to know about the year — so far — in measles.

How many measles cases has the U.S. seen this year?

Nationwide, measles cases already are nearly double the total for all of last year.

The U.S. Centers of Disease Control and Prevention documented 113 cases as of April 5. There have been seven outbreaks and most of U.S. cases — 73% — are linked to those flare-ups.

Still, the count is lower than some recent years: 2014 saw 667 cases and 2019 had 1,274.

Why is this a big deal?

The 2019 measles epidemic was the worst in almost three decades, and threatened the United States’ status as a country that has eliminated measles by stopping the continual spread of the measles virus.

The CDC on Thursday released a report on recent measles case trends, noting that cases in the first three months of this year were 17 times higher than the average number seen in the first three months of the previous three years.

While health officials seem to be doing a good job detecting and responding to outbreaks, “the rapid increase in the number of reported measles cases during the first quarter of 2024 represents a renewed threat to elimination,” the report’s authors said.

Where is measles coming from?

The disease is still common in many parts of the world, and measles reaches the U.S. through unvaccinated travelers.

According to Thursday’s report, most of the recent importations involved unvaccinated Americans who got infected in the Middle East and Africa and brought measles back to the U.S.

Where were this year’s U.S. measles outbreaks?

Health officials confirmed measles cases in 17 states so far this year, including cases in New York City, Philadelphia and Chicago.

More than half of this year’s cases come from the Chicago outbreak, where 61 people have contracted the virus as of Thursday, largely among people who lived in a migrant shelter .

The city health department said Thursday that cases are on the decline after health officials administered 14,000 vaccines in just over a month.

How does measles spread?

Measles is highly contagious. It spreads when people who have it breathe, cough or sneeze and through contaminated surfaces. It also can linger in the air for two hours.

Up to 9 out of 10 people who are susceptible will get the virus if exposed, according to the CDC.

Measles used to be common among kids. How bad was it?

Before a vaccine became available in 1963, there were some 3 million to 4 million cases per year, which meant nearly all American kids had it sometime during childhood, according to the CDC. Most recovered.

But measles can be much more than an uncomfortable rash, said Susan Hassig, an infectious disease researcher at Tulane University.

“I think that people need to remember that this is a preventable disease,” Hassig said. “It is a potentially dangerous disease for their children.”

In the decade before the vaccine was available, 48,000 people were hospitalized per year. About 1,000 people developed dangerous brain inflammation from measles each year, and 400 to 500 died, according to the CDC.

Is the measles vaccine safe? Where do vaccination rates stand?

The measles, mumps and rubella (MMR) vaccine is safe and effective . It is a routine and recommended childhood vaccine that is split into two doses.

Research shows it takes a very high vaccination rate to prevent measles from spreading: 95% of the population should have immunity against the virus.

During the COVID-19 pandemic, national vaccination rates for kindergartners fell to 93% and remain there. Many pockets of the country have far lower rates than that . The drop is driven in part by record numbers of kids getting waivers .

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

  African Journal of Marine Science Journal / African Journal of Marine Science / Vol. 46 No. 1 (2024) / Articles (function() { function async_load(){ var s = document.createElement('script'); s.type = 'text/javascript'; s.async = true; var theUrl = 'https://www.journalquality.info/journalquality/ratings/2404-www-ajol-info-ajms'; s.src = theUrl + ( theUrl.indexOf("?") >= 0 ? "&" : "?") + 'ref=' + encodeURIComponent(window.location.href); var embedder = document.getElementById('jpps-embedder-ajol-ajms'); embedder.parentNode.insertBefore(s, embedder); } if (window.attachEvent) window.attachEvent('onload', async_load); else window.addEventListener('load', async_load, false); })();

Article sidebar, article details, main article content, impact of interactions between common bottlenose dolphins and purse-seiners in the moroccan mediterranean region: case study in the al hoceima fishing grounds.

This study examines the effect of common bottlenose dolphins Tursiops truncatus on the purse-seine fishery for small pelagic fishes in the Mediterranean Sea and the economic consequences thereof. The investigation focused on the fleet registered at the port of Al Hoceima, Morocco, and used information collected from on-board observations and a semi-structured questionnaire with fishermen and ship-owners. A total of 121 dolphins were captured as bycatch during 48 fishing trips, with a mortality rate of 0.23 dolphins per fishing trip. In terms of damage to the fishing gear, the number of observed holes varied between 28 and 230 per net per incident. Though some tears were large, most were <35 cm in height. The cost of repairing the holes in the nets caused by these interactions was estimated at US$179.52 per mending event. The level of interaction between common bottlenose dolphins and the purse-seine fishery targeting small pelagic fishes is a challenge for both fishery management and dolphin conservation. 

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