case study 101

Case Interview 101: The Online Guidebook

“Case Interview” is the cornerstone of consulting recruitment, playing a decisive role in final results. In 30 minutes, your “consulting” qualities will be tested to the limit as you cruise through a hypothetical “consulting project” with the interviewer.

Yes, this is a BIG topic. The depth of content in this single article is HUGE with various chapters ranging from beginner’s topics to more advanced ones. You would want to bookmark this page and go back often throughout your whole preparation journey.

What is a case interview?

A case interview is a job interview where the candidate is asked to solve a business problem. They are often used by consulting firms, and are among the hardest job interviews, testing both problem-solving skills and “soft” skills. Case interviews often last 30-45 minutes each, and firms can utilize up to 6 case interviews, usually divided into 2 rounds.

Example case questions:

• “We have a restaurant called “In-and-out Burger” with recently falling profits. How can you help?”
• “The CEO of a cement company wants to close one of its plants. Should they do it?”
• “A top 20 bank wants to get in top 5. How can the bank achieve that goal?”

Case interviews are modeled after the course of actions real consultants do in real projects – so success in case interviews is seen by consulting firms as a (partial) indication of a good management consultant.

During the interview, the interviewer will assess your ability to think analytically, probe appropriate questions, and make the most client-friendly pitches. Be noted that the analytical thought process is more important than arriving at correct answers.

Generally, there are 2 styles of conducting cases:  Candidate-led and Interviewer-led. 

Candidate-led cases

On this end, the interviewer rarely intervenes; the candidate will lead the approach from structuring the problem, drawing frameworks, asking for data, synthesizing findings, to proposing solutions. This format can be difficult for beginners but it provides you with much control over the case.

Interviewer-led cases

On this end, the interviewer controls the process in significant ways. He or she has the candidate work on specific parts of the overall problem and sometimes disregards the natural flow of the case. The game here is not to solve the one big problem, but rather to nail every question, every pitch, every mini-case perfectly. Because the evaluation is done on a question basis, the level of insightfulness required is higher.

Most cases will fall somewhere in the middle section of that spectrum, but for educational purposes, we need to learn case interviews from both extremes ends.

Great details in each and every aspect of the case, as well as tips, techniques and study plans are coming in the chapters below. You may skip straight to Chapter 3 if you have business background and confidence in your own understanding of the terminology used in case interviews. 

To better understand or practice candidate-led and interview-led cases, let’s book a personal meeting with our coaches . At MConsultingPrep, you can connect with consulting experts who will help you learn the ins and outs of both cases and the solving approach to each one. Get “real” practice now!

Case interview starter guide for non-business students

All consulting firms claim that all educational backgrounds have equal chances. But no matter what, case interview reflects  real-life business problems and you will, therefore, come across business concepts .

Not everybody has the time to go to a full Business Undergraduate program all over. So through this compact Chapter 2, I will provide you, the non-business people, with every business concept you need in case interviews.

Accounting and financial terms – The language of business

Accounting & Financial Terms are often called the language of business, which is used to communicate the firm’s financial and economic information to external parties such as shareholders and creditors.

There are three basic financial statements : Balance Sheet, Income Statement, and Cash Flow Statement.

Balance Sheet

A snapshot of the current stage of the company’s property, debt, and ownership at one given point in time, showing:

• Assets: what the company owns: Building, Equipment, Cash, Inventory, along with some other intangible items.
• Liabilities: what the company owes: Loans, overdrafts, bills to be paid, etc. Debt is like negative assets.
• Equity (Net worth): Calculate by taking Assets subtract Liabilities.

The neat thing about the Balance sheet is that it’s always balanced. Every action, every transaction changes the three components but it’s always in harmony.

Income Statement

A record of the business performance through a period of time , given it a quarter or a year. The Income Statement directly tells you how the company is doing in terms of making money, the heart of any business.

From the top to bottom, the Income Statement shows the Revenues, Costs, and Profits. That’s why often, Profits are referred to as the “bottom line”.

There are a few types of costs to notice – see the two pictures below this table.

One important thing to notice is that even though it may seem like, the Income Statement does NOT necessarily relate to cash. Many times, especially for B2B transactions, the selling happens before the money flow. Therefore, we may have to record revenue without having the cash.

Cash Flow Statement

There’s a famous saying that: Income statement is an opinion, Cash Flow statement is a fact.

The Cash Flow statement just strictly monitors the cash flow in or out, categorized into different sections. Three of them are:

• Operation: illustrates how much cash the company can generate from its products and services.
• Financial: includes the sources of cash from investors or banks and the uses of cash paid to shareholders.
• Investing: includes any sources and uses of cash from a company’s investments.

Upon completion this section, you should be able to read and interpret financial statements for business diagnosis and decision-making.

More importantly, you possess the conceptual base to start solving case interviews on your own. Do not forget that, as with any other language, becoming proficient with accounting and financial terms require constant practice.

Organizational structure – The heart of a company

When it comes to organizational structure, it is important to notice the fine line between the company’s ownership and management .

Technically, at the highest level, there are shareholders . For private companies, the group of shareholders and their shares are not necessarily disclosed and publicly tradable. For public companies, on the other hand, shares are publicly traded on different stock exchanges. One of the most famous is the NYSE, which stands for New York Stock Exchange.

• A company can have one, a few, or millions of individual owners, but being governed by the Board of Directors – a group of people elected by owners, with the President or Chairman being their highest leader.
• The Board usually hires a management team to manage the company. They are led by the Chief Executive Officer – CEO , who makes every decision on day-to-day work. Most of the time, the Board of Directors doesn’t directly intervene in the CEO’s work, but they reserve the right to fire CEOs.
• Besides that, there’s a committee called Supervisors. The supervisor’s job is to independently monitor the CEO and the management team and report to the Board.

Below CEOs, there are two general two ways of structuring the company. One way is through business lines and the other one is through functions. Think of business lines as mini-companies themselves inside the big company.

Within functions, here are a few most typical divisions most companies have:

Business strategy concepts

Even with business students, strategy is a challenging topic – especially with those without a strategy major. These fundamental concepts will get you started.

• Organization: In general, this refers to how a company is organized, what are different components that make up a company
• Governance refers to how a company is managed and directed, how well the leader team runs. The leader team includes the Board of Directors and Board of Managers. A company with good governance has good leadership people, tight control, and effective check & balance processes, etc.
• Process looks like rules and common practices of having a number of processes, entailing every single activity. Process design should include 4 factors: who, what, when, and accompanied tools.

For example, let’s look at Kim’s family picnic process.

• The who part is presented on the y-axis, left-hand side, labeling all departments, a.k.a: family members, involved.
• The what part is presented through the big mid-session with each box represents every single activity.
• The when and tools parts are presented at the bottom

B2B  vs B2C : stand for “business-to-business” and “business-to-customer”. These two terms refer to two types of transactions a company typically does: transactions with other companies and transactions with individual customers.

Bottom-up vs Top-down: this refers to two opposite schools of thought or action. Top-down usually encompasses various general branches while bottom-up tends to narrowly focus. 

Management consulting terms & concepts

These are the most common consulting terms you may encounter not just in case interviews but also in consulting tasks .

• Lever: Think of this as one or a group of initiatives, actions to perform to meet certain goals. e.g. some levers to help increase customer experience in a hotel are free breakfast, free Wi-Fi, 24/7 support, etc.
• Best practice: Refers to how things should be done, especially if it has been successfully implemented elsewhere.
• Granular: This refers to how specific and detailed a break-down or an issue goes. For example, a not-so-granular breakdown of the NBA is the West and the East conferences. A much more granular is something like this: Leagues, Conferences, Divisions, and Teams.
• MECE: MECE is so important and we explain it in detail in this article. In short, MECE is the standard, per which we can divide things down in a systematic, comprehensive, and non-overlapping way.

There are three parameters the consulting world uses in the categorization of businesses.

• Industry: used to group different companies mostly based on their product (Banking, Construction, Education, Steel Industry, etc.)
• Function: is the categorization mostly based on missions and the type of roles of different parts of a company. We can count some as Human Resource, Finance, Strategy, Operation, Product Development, etc.
• Location: is where things are, geographically.

Normally two consultants ask each other “What do you work on?”, they need to give 3 pieces of information in all of those three parameters, such as “I worked on a Cement project, focusing on Finance, in Southeast Asia”. In fact, all of the McKinsey support networks are organized in this way. During my projects, I would need to speak to some Cement experts, some Finance experts, and some local experts as well.

This chapter is relatively long, yet it is still way shorter than 4 years at business college. I hope this will act as a great prerequisite to your case interview study. Make sure that you have mastered all of these content before really tackling the Case Interview.

Case interview example – The typical flow

In a simplified way, a typical case would go through these phrases (we will talk about exceptions in great detail later):

Case question -> Recap -> Clarification -> Timeout -> Propose issue tree -> Analyze issue tree -> Identify root-causes -> Solutions -> Closing pitch

Problem-solving fundamentals – Candidate-led cases

Though most cases will be conducted in mixed format, let’s dive deep and learn about each extreme end of the spectrum to get the full picture.

Even though this is the harder format, it shows us the foundation of how management consulting works, i.e: the consulting problem-solving logics!

If you were exposed to case interviews, you have probably heard about some of these concepts: framework, issue tree, benchmark, data, root cause, solutions, etc. But how do they all fit into the picture?

It all starts with the PROBLEM

Before getting into anything fancy, the first step is to define and be really clear about the problem.

This sounds easy but can be quite tricky. Here are a few guidelines:

1. What’s the objective?

2. What’s the timeline required?

3. Any quantified or well-described goals?

For example, one client can state a problem as: “I lost my car key”. In normal contexts, this is a perfectly simple and straightforward problem. But a consultant tackling this would go ask clarification questions to achieve even more details:

1. Objective: the client in fact just needs to be able to use the car.

2. Timeline: this is an urgent need. He is happy only if we can help him within the next hour.

3. Specificity: help the client put his car into normal operation like before he lost the key.

Find the ROOT-CAUSE, don’t just fix the symptom

To completely wipe out the problem and create long-lasting impacts, consultants always  search and find the root causes.

For example, fixing the symptom is like you breaking the door lock, getting into the ignition electrics behind the wheel, and connecting the wires to start the car.

That does fix the surface symptom: the client can drive the car. But it does NOT create a long-lasting impact because without you there, the car can’t be started. The client will need to rely on you every single time. Plus, more problems even arise (now he needs to fix the broken door lock too).

A much better approach is to find the root cause. What is the bottom-line reason causing the problem? Once we trace, find, and fix it, the problem will be gone for good.

In this example, the root cause is “the lost key”. We need to find its location!

Use ISSUE TREE to isolate potential root-causes into groups

There could be thousands of possible root-causes. How do we make sure every possible one is examined? If we are to list out all thousands and test one by one, there is simply not enough time. On the other hand, if we just list out some of the most “possible” ones, we run a high risk of missing the true root-cause.

This is where we need issue trees ! We would group possible root-causes into big groups. Those big groups will have smaller sub-groups and so on. All is done in the spirit of top-down and MECE. By doing this, we have an organized way to include all possible root-causes.

Continue with the example: A “bottom-up” approach to search for the car key is to go straight to specific places like the microwave’s top, the black jacket pocket, under the master bed, etc. There can be thousands of these possible locations.

The top-down approach is to draw an issue tree, breaking the whole house into groups and examine the whole group one by one. For example: first floor, second floor, and the basement.

Issue Tree only works if it’s MECE

What happens if we break down the search area into the First floor and East wing? The search area would not cover the whole house and there will be some overlapping which creates inefficiencies.

So for an issue tree to work properly, it has to be MECE – Mutually Exclusive and Collectively Exhaustive … which in simple language just mean 2 things: no overlap and no gap

How to draw MECE issue trees? Use FRAMEWORKS!

Each problem requires a unique issue tree. Coming up with MECE and spot-on issue trees for each problem can be really difficult. This is where “framework” helps.

Think of frameworks as “frequently used templates” to draw issue trees in any particular context. Many people use the word “framework” to refer to “issue tree” but this is conceptually incorrect.

We will talk about frameworks in more detail in the below chapters. You can also check out this deep-dive article on Frameworks.

Choosing which branch to go to first? Use HYPOTHESES!

So let’s say you have an issue tree of First floor, Second floor, and Third floor. Now what?

To make the problem-solving process even faster and more efficient, we use hypotheses. In simple language, it’s the educated guess of where the root cause may lie in. So we can prioritize the branch with the highest chance.

So let’s say, the client spends most time on the first floor, it’s where he/she most likely leaves the car key. Any consultant would hypothesize that the root cause is in the first-floor branch and go search there first.

Notice: hypothesis and issue tree always go together. It doesn’t make sense to draw an issue of First, Second, and Third floor and hypothesize that the key is in the East wing. Many times, hypotheses are even the inspiration to draw issue trees.

How to test a branch? Use DATA and compare it with BENCHMARK

Now that we decide to test the branch “First floor”, how do we do that?

We prove or disprove our hypothesis by collecting DATA. That data is then compared with benchmarks to shed more meaning. Two main types of benchmarks are: historical and competitive. For example, let’s say by some magic, the client has a metal detection machine that can measure the metal concentration of any space.

To test the “first-floor” branch, the consultant would come to the first floor, measure the metal concentration and compare it with the data before the car key is lost, a.k.a: historical benchmark.

If a hypothesis is true, drill down; if it’s false, go sideways

What happens when we test a hypothesis?

Assuming that we have access to enough data, it either gets proven TRUE or proven FALSE. How do we proceed from here? 

• Proven True: go DOWN the issue tree to sub-branches! Let’s say the metal detector identified the key IS indeed on the first floor. Go deeper. Draw sub-branches of that first-floor branch and repeat the process.
• Proven False: go HORIZONTAL to other big branches! Let’s say the metal detector denies the key presence on the first floor. We then can cross out this branch and go test others, a.k.a: the second and third floor.

Test, Sleep, Test, Repeat … until the ROOT-CAUSE shows up!

Once identified the ROOT-CAUSES, go for SOLUTIONS

With all proven root causes identified, the last step is to come up with solutions to kill the problem … and we are done! There can be multiple solutions to each root cause. These solutions should attack straight to the root cause.

Case interview questions – Interviewer-led cases

While candidate-led cases are all about the logical foundation of problem-solving, interviewer-led cases are more about tackling each individual question itself. The structure of the whole case is relatively loose and flexible.

In this chapter, we touch on some of the most popular ones. You can read in-depth about each in this designated article.

Framework/Issue Tree questions

“Which factors would you consider when tackling this problem?”

This is one of the most popular question types in case interviews, often asked in the beginning. It comes with several shapes and forms, but the real meaning is always: “Give me the bloody issue tree!”

So how do you tackle it? Just like in candidate-led cases. Take a timeout; brainstorm about the problem and how it should be broken down into; plug a few frameworks to see how it looks; and go for the most appropriate issue tree.

Unlike in candidate-led cases where you only present the upper-most layer, here you should walk the interviewer through the whole issue tree, covering at least 2 layers. Interviewer-led cases are much less interactive. It’s more like they ask you a question, and you deliver a comprehensive and big answer. They ask you another one. And so on.

Market-sizing / Guesstimate questions

“How many face masks are being produced in the whole world today?”

This is among  the most popular question types and you will likely face a few of them throughout several interview rounds. These questions ask you to “guess” and come up with number estimations in non-conventional contexts. These questions are called “Guesstimate”.

When a guesstimate question asks you to “guess” the size of a market, it’s called a “Market-sizing” question. Though this variation is very popular in consulting, the nature is nothing different from other Guesstimate questions.

It can be intimidating to face a question like this. Where to start? Where to go? What clues to hold on to?

The key is to understand that you don’t have to provide an exact correct answer. In fact, nobody knows or even cares. What matters is HOW you get there. Can you show off consulting traits, using a sound approach to come up with the best “estimate” possible?

Read the designated article on this for great details. Here, let’s walk through the 4-step approach that you can apply to absolutely every market-sizing question.

Step 1: Clarify

Make sure you and the interviewer are on the same page regarding every detail and terminology, so you won’t be answering the wrong question.

Step 2: Break down the problem

Break the item in the question (number of trees in Central Park, market size of pickup trucks) down into smaller, easy-to-estimate pieces.

Step 3: Solve each piece

Estimate each small piece one at a time; each estimation should be backed by facts, figures, or at least observations.

Step 4: Consolidate the pieces

Combine the previous estimations to arrive at a final result; be quick with the math, but don’t rush it if you aren’t confident.

Math questions

“If the factory can lower the clinker factor by 0.2, how much money will they save on production cost?”

Almost all cases involve some math. So you will face math questions for sure. These “questions” can go at you either explicitly and implicitly. Sometimes, the case interviewer will ask out loud a math problem and have you solve. But sometimes, you have to do multiple calculations on the background to push the analysis forward.

Either way, a strong math capability will help you a lot during cases and the future career in consulting. See this Consulting Math article for more details.

Chart insight questions

“What insights can you draw from this chart?”

Consultant works with data and a big chunk of those data are presented by charts. Many times, the interviewer would pull out a sanitized exhibit from an actual project and have you list out insights you can see from it.

There are many types of charts. Getting yourselves familiar with the most popular ones is not a bad idea.

• Bar charts simply compare the values of items that are somewhat parallel in nature.

• Line charts illustrate the continuous nature of a data series, e.g: how my heart rate evolved through time.

• Pie charts illustrate proportions, i.e “parts of a whole” analyses.

• Scatter-plots use data points to visualize how two variables relate to each other. Correlation for example.

Tips on tackling chart-insights questions:

1. Read labels first: from Chart titles, Axis titles, Legend titles, etc. Don’t jump straight to the content of the chart. It takes more time to get lost there and has to go back to read the label. Besides, you may also run a risk of misunderstanding the content.

2. Look for abnormalities: important insights always lie in those unexpected and abnormal data. Look for them!

Value proposition questions

“What factors does a customer consider when deciding which car insurance company to buy from?”

In simple language, this question type asks you: what do the customers want? Understanding exactly this need will put any company in the best position to tailor products/services.

Like any other questions, Value-proposition questions are not only about correctly identifying customer preferences (insights) but also about analyzing and delivering the answer in a structured fashion. Here are a few tips for you to do that:

How to be more insightful: 

• It always helps to break customers into groups and provide different substances for each.
• Put yourselves into the customers’ shoes. Think from the first-view perspective and more insights will arrive.
• If there is any data/ information previously provided in the case, definitely use it.
• A library of factors? Safety, speed, convenience, affordability, flexibility, add-on services, durability, fashion, ease of use, location, freshness, etc.

How to appear more structured:

• Follow this structure: Customer group 1, Customer group 2, etc. Under each: Factor A, factor B, factor C.
• Develop your personal script for this question type. Make sure it’s easy to follow and structured in nature.

Information questions

What kind of data do you need to test this hypothesis? How do you get data

Consulting is a data-driven industry. As consultants, we spent most of our time gathering and presenting data to clients ( see the What the heck does a consultant do video ). No surprise information questions are relatively popular in cases.

The best way to tackle this question type is to understand inside out the types of data actual consultants use in real projects. Because almost no candidate knows about this. This is also a very quick way to build rapport. The interviewer will feel like he/she is talking to a real consultant.

Case interview example video – Pandora case

Enough theory! Enough cute little illustrations here and there. Time to get our hands into a serious case interview example.

Notice the following when watching the video:

• How the problem is given and clarified
• How the problem-solving approach is layouted and executed
• How the candidate use wording and frame the pitches
• The dynamic of a case. How energy transfers from one to another person.

Every case is unique in its own way but principles are universal. The more examples you see, the better. This video is extracted from our  Case Interview End-to-end Secrets program, where you can find 10 complete examples like this and many other supplement contents.

How to prepare for case interviews

Case Interview preparation is a long and tough process. In an ocean of books, videos, programs, how do we navigate to maximize learning? Most materials floating around are quite good, at least in terms of substance. But the timing and the organization of them can be confusing.

• Too much theory in the beginning can burn brain power very quickly.
• Tackling cases without basics can develop bad habits, which eventually cost more time to unlearn.
• Practicing complicated (or even just normal) cases in the beginning can destroy morale drastically.

So a good study plan is constantly switching between 3 activities: reading theory, watching examples, and practicing, with cases increasing difficulty level. It’s so crucial to start with super easy cases, be patient, and stay on that level until you are ready to move up. There are so many skills, habits, and scripts to develop and these take time.

“The quickest way to do just about everything is … Step by Step”

Even for candidates with cases coming up urgently, I still strongly recommend spending the most valuable time practicing cases that match your level. After all, cases are just the context. What you will be evaluated on is your approach, your skills, your techniques, etc.

So, this is a sample study plan you can adopt for yourselves:

Step 1: Learn the basics of case interview theory

• Read this article thus far
• Watch this  Case Interview 101 video

Step 2: Watch a simple case interview example

• Read the sample case flow above.
• Watch this  Case Interview Example video
• Go to this list of free case examples and try to select a very simple one. If you can’t follow one, it’s probably not good for you. Just skip it.
• Watch the first example in the  End-to-end Program

Step 3: Review the theory of case interview approaches  

• Read deeply about the logical foundation of problem-solving in this BCG & Bain Case Interview article.
• Watch intensively the logical foundation of problem-solving in this Candidate-led cases video.

Step 4: Do one mock case interview

• Practice with consultants. They have the insight and knowledge to help you pass the interview. Discover our experienced coaches from McKinsey, BCG and Bain here .
• Find a partner to practice with. Make sure you both watch this  Guide on how to conduct a case. A bad coach can do more harm than good.
• Get your hand on another example in the  End-to-end Program. But this time, don’t just watch. Actively solve the case as you see it! Try to say out loud your version, then listen to the candidate, then hear the feedback!

Step 5: Start improving your business intuition

Business Intuition is like your natural sense of the business world: how to be insightful and creative in various business contexts, how to feed the “content” into your approach, etc. Think of this as a basketball player trained for muscle strength, agility, or durability. Intuition can be improved gradually through constantly exposing yourselves to a wide range of business situations and contexts.

You can do this by:

• Read consulting publications. One article per day for example. Three wonderful sources are: McKinsey Insights, BCG Perspectives, and Bain Publications
• Train  case interview questions individually. By isolating each part of the case, you can focus more on the substance. Hit that link or get more question training on the End-to-end Secret Program .

Step 6: Start training consulting math

• Visit this in-depth consulting math article.
• Train our  Mental Math methodology.

Step 7: Practice another mock case interview

At this stage, please still stick to very basic cases. The goal is to see all of the knowledge and skills above in real action. Again, this can be done by either:

• Book a meeting with coaches
• Find another partner to practice with. Just make sure you both watch this Guide on how to conduct a case. A bad coach is always more harmful than not practicing at all.
• See another example in the End-to-end Program. Like the previous one, try actively solving the case as you see it! Say out loud your version, then listen to the candidate, then hear the feedback!

Step 8: Equip yourself with tips, techniques, and advance theory

• Read on! The below chapters of this very article will provide you with more advanced theory and killer tips.
• Watch the whole Tips & Techniques sections of the End-to-end Program. You will find 10 examples with clear walkthroughs of tips and techniques right in the middle of real action.

Step 9: Do further mock cases, review, and improve

Practicing for case interviews is a time consuming process – but as long as you have the right method, you will make it!

• First, brush up on knowledge related to case interviews with the Case Interview End-to-End Secrets Program .
• Second, get personalized practice with ex-consultants. That way, you’ll receive clear and tuned feedback to understand what to improve, building your own proper case approaches.  See a list of experienced coaches here .

Stay tuned with us on this website and our Youtube channel for continuously updated information on case interviews and management consulting recruitment; you can also subscribe to the newsletter below for free materials and other insightful content!

Good luck with your case prep!

Case interview tips – With instant results

Imagine a case interview just falls out of the sky and into your lap, scheduled for tomorrow – how can you even prepare?

The answer lies in a few “quick and dirty” tips, which I’ll share with you in a moment.

I am a firm believer in the 80-20 rule – which states that 20% of the causes lead to 80% of the consequences.

In the case interview prep context, 20% of your learning efforts will bring about 80% of the improvements – so the key to instantly and dramatically improving your case performance is to identify and focus on that 20%.

In the next 8 chapters, I’ll tell you the killer tips and tricks that helped me get a McKinsey offer, the majority of which were previously only available in the premium End-to-End Secrets Program , including:

• Chapter 9: Delivering the perfect case opening
• Chapter 10: Remaining absolutely structured throughout the case
• Chapter 11: Taking the best notes
• Chapter 12: Getting out if stuck
• Chapter 13: How to ask for data
• Chapter 14: What to do when receiving data
• Chapter 15: Deliver the most convincing closing pitch
• Chapter 16: Developing your personal scripts

One thing before you proceed: don’t forget to learn the fundamentals, the question types, and the frameworks. Remember, these 20% tips can only get you 80% performance; if you want 100%, there’s  no substitute for hard work.

How to deliver the perfect case opening

The result of a case interview is determined  the first 3 minutes – and I’m not even exaggerating.

Most people will be put off by this fact – indeed, with all those efforts spent on learning for the later part of the case, and the hiring decision is made when you’re not even properly warmed up yet.

However, putting a spin on it, this is the 20% to focus on – if you nail the opening, you’ll make a better impression than most candidates; it’s also easier to perform well in 3 minutes than in 30 minutes, especially when the case hasn’t gotten tricky. Additionally, you can prepare the opening in a formulaic manner – essentially learning by heart until it becomes natural.

There are 7 steps in the perfect case opening formula:

1. Show appreciation

2. Announce case introduction

5. Announce case approach

7. Ask for a timeout

In this chapter, I’ll walk you through each of those steps.

Step 1: Show appreciation

The quickest way to score the first points with any interviewer is to  sincerely compliment them. Everybody loves compliments.

Case interviewers are not dedicated HR staff, but Engagement Managers, Partners, and Directors who conduct interviews ON TOP OF their projects as goodwill for the firm, so you should at least be thankful for the time they spend with you.

Begin your interview with a sincere “thank you” for the interesting case (if you have to fake these words because deep down you don’t like case interviews, you aren’t exactly cut out for the job).

Step 2: Announce case introduction

Announce you’re going to do  steps 3, 4, and 5.

This step is related to what I call the “map habit”, which I’ll describe in detail in the next chapter. For now, just understand that it  helps the interviewer follow your introduction, and shows you’re a structured person.

Step 3: Recap  

What is the key question of the case?

On a side note: one common mistake is to mix up step 3 with step 4 (clarify) – remember, don’t ask anything , just rephrase the case to ensure that you get it right.

Step 4:  Clarify

Ask questions to clear up any  potential confusion about the details of the case.

Case questions are always very short with a lot of vague details; if you don’t see the need to ask anything, you’re doing it wrong.

Run this checklist through your mind to help you clarify as many unclear points as possible:

• Definitions: are there words you don’t understand or can be interpreted in multiple ways?
• Timeframe: what is the “deadline” for solving this problem?
• Measurement: how are the important variables (performance, revenue, etc.) measured?

Additionally, number your questions so it’s easier for you and the interviewer to keep track.

Step 5: Announce case approach

Roughly sum up  how you’ll analyze the problem.

Again, this is related to the map habit, which makes the overall case progress easier to follow.

There are 3 types of cases: (1) problem-solution, (2) should I choose A or B, and (3) how to do C. For each type, there is a different approach. The latter two are discussed in the “Advanced Logic” chapter, for now, we’ll continue with the first type: tell the interviewer you’re going to find the root cause to ensure long-lasting solutions, and to do that you’ll develop an issue tree.

Step 6: Align

Check if the interviewer  approves of your case approach.

This is an important habit of real consultants  because nobody wants to waste resources going in the wrong direction; interviewers expect candidates to show it in the case interview.

Simply ask “Does this sound like a reasonable approach to you?” – most likely the interviewer will give you the green light, but if you’re lucky he/she may even suggest a better approach.

Step 7: Ask for timeout

After you’ve gone continuously through the 6 steps above, ask the interviewer for timeout to (make this explicit) gather your thoughts and develop the first part of the issue tree.

Make the most of your timeout session, and keep it as short as possible. Any unnecessary silence will damage the impression and hurt your chances (refer to the End-to-End Program example in Chapter 6 to “feel” how awkward a lengthy timeout session is).

Case opening – Example script

Now it’s time to see how you can put all those steps into action!

Thank you for this very interesting case, I am really happy to get a chance to solve it!

The first step in solving any business problem is to make sure we solve the right one, so before diving into the problem, I would like to first recap the case, then ask a few clarification questions to make sure we’re both on the same page, and lastly announce my overall case approach.

So here is my understanding of the case:

• [facts regarding the client and situation]
• [key case question]

Does that correctly summarize the case?

<assume the interview confirms that your playback is correct>

Great, now I’d like to ask my three clarification questions:

• [question 1]
• [question 2]
• [question 3]

<wait for answers>

Thank you for the clarification. Is there anything else I should be aware of?

Thanks for all the insights. It’s great that we all agree on the key details.

For the overall approach to this case, to completely wipe out the problem for a long-lasting impact, we will need to find out the root causes of this problem. To do that I will try to break the problem down into bite-size pieces with issue trees, in order to quickly isolate the root causes inside the branches, then drill down accordingly to gather information until we can draw actionable solutions.

So before I go on to establish my first issue tree, does that approach sound reasonable to you?

<assumes the interviewer agrees with your approach>

It’s great to see that we’re on the same page regarding the key details as well as the overall approach to the case. I do need some time to gather my thoughts, so may I have a short timeout?

Being structured throughout the case

The high stress and large amount of information in case interviews make it easy for even the brightest candidates to derail from the objective or present in an unstructured manner.

I’ll be sharing with you my 3 most impactful tips for keeping the structure in case interview:

1. The map habit

2. Numbering your items

3. Sticking to the big problem

The map habit

It means regularly and explicitly checking where you are, and where you’re doing next.

I call it the map habit because it’s similar to using a map while traveling – pausing every once in a while to check your location, destination, and direction.

This habit gives you a sense of direction and authority while making it easier for the interviewer to follow your case progress. It also makes you sound organized and systematic – a definitive mark of management consultants – and the interviewer will love it!

You’ll see this habit a lot in our Case Interview End-to-End Secrets Program, where candidates would often pause at each key step during the case. Do the same thing in your own case interviews, and you’ll greatly impress the interviewer.

Numbering your items

A very easy and effective way to make your pitches sound structured is to number each item.

The formula is simple: “There are X items that I’m going to say; they are: No.1 … No.2 … No.3 …”

By now you may have noticed that I use this structure many times throughout this guidebook – it’s already quite effective in written language, but it’s even more impactful in spoken communications!

Having this numbering habit will make it very easy for the listener to follow your speech, and it creates an impression of MECE (even if content-wise it’s not MECE).

Sticking to the big problem

There are two ways to keep yourself on track  all the time in those high-stress case interviews

1. Occasionally check your position on the issue tree, and quickly get back on track if it seems you’re “derailing”. If this sounds like the previous map habit, you’re right, it is the map habit.

2. Take good notes, with the case question being written big and bold on top of your scratch paper. That way you’ll be reminded every few seconds.

That last point brings us to the next issue: how to take notes.

How to take notes in case interviews

The best notes for case interviews are always  clear-cut, structured, and relevant.

Even the smartest candidates suffer from seemingly silly problems in case interviews – forgetting data, messing up the numbers, getting stuck with frameworks, losing sight of the original objective, etc. And in the true management consulting spirit, I set out to find the root causes.

And looking back at hundreds of coaching sessions I did, I found one thing in common – none of those candidates could take good notes.

I’ll tell you precisely how I took notes to get a McKinsey offer; however, I hope that after this chapter, you can install the spirit of the method, not just the method itself.

So here we are, with the 3 groups of sheets laid out for the ideal note-taking:

1. Data sheets

2. Presentation sheets

3. Scratch sheets

Data sheets

Data sheets are used to store and process every piece of incoming data .

Try to draw tables for these sheets, because this not only makes the calculation process easier but also gives the impression that you’re a careful and organized person.

Also, remember to write only the results of calculations on this sheet, to keep it neat and tidy. Most of your calculations should be done mentally (see the article on Consulting Math for more details); if you really need to jot down the calculations, do it on the scratch sheets.

Presentation sheets

Presentation sheets are used to develop and present any “outgoing” content.

Your issue trees should be drawn on these sheets, along with the big-and-bold case question/objective right on top. When delivering your pitches, always turn around the presentation sheets so the interviewer can clearly read what’s on them.

As with the data sheets, avoid any messy “mid-process” drawings. Put them on the scratch sheets instead.

Scratch sheets

Scratch sheets exist to keep other sheets clean.

Ever felt irritated receiving a notebook full of correction marks? That’s exactly how the interviewer feels if you present with untidy notes. You should try your best to hide all the unorganized, messy parts of your thought process.

The scratch sheets provide a sanctuary for that unstructured part of yours – it’s okay to go all over the place for brainstorming, as long as you can organize the incoming resources and present in a systematic manner.

“I took the notes just as you instructed, but I still get stuck in cases. How can I avoid it?” – Well, that’s the subject for our next chapter – “Stuck” situations and how to get out of them.

Stuck in cases – What to do

We’ve all been there – that scarily awkward feeling when you don’t know what to do next in a case interview, that fear of being rejected.

In every “stuck” situation, the most important thing is to remain calm and collected (you’ll lose points if you panic) – then methodically work your way out. I’ll teach you how to get out of those situations, with style.

There are actually 3 different kinds of “stuck”, and for each, I have a different solution:

1. The “Framework” stuck

2. The “Data” stuck

3. The “I-Cannot-Find-The-Problem” stuck

Let’s go through each in detail.

The framework stuck

This situation happens when the candidate does not know which framework to use, and the secret tool for it, is “segmentation”.

Segmentation works just like any framework, and like a Swiss Army knife, it’s usually safe and easy to use. So if you’re unsure how to break things down, say these magic words:

“At this point, I’d like to break down this X item, and one good way is to use the natural segmentation within this line of business. So may I ask how they break this X item in this industry?”

If you get it right, the interviewer will reply with the most industry-relevant way to segment the item.

You may be wondering why I’m not talking about issue trees and frameworks here, after all the theory at the beginning of the guidebook.

The answer is that the textbook and “ideal” solution – learning the problem-solving fundamentals and deep-diving the frameworks to increase your flexibility – takes a lot of time, while the “cliched” solution – learning as many frameworks as possible, usually at the cost of depth – is inherently dangerous.

The data stuck

The “data stuck” happens when the candidate can’t extract relevant insights from the given data. And when this happens, ask for benchmarks.

Comparing with benchmarks is the quickest way to put data into perspective, yielding useful insights. There are 2 kinds of benchmarks – if you remember from the chapter on Candidate-led Cases: 

• Historical benchmarks: data on the same entity in the past
• Competitor benchmarks: data on similar/competing entities in the same timeframe

To ask for benchmarks, Just say the following lines:

“For now, I hypothesize that the root cause of the problem comes from the X branch of this issue tree. However, to further break down the problem in a spot-on way, I do need some information on the context of our client’s problem.

One of the quickest ways to grasp that context is to use competitor’s data; so can I have the X figure for our client’s competitors?”

The “I-Cannot-Find-The-Problem” stuck

This is the scariest “stuck” because there’s no obvious reason or solution – you’ve done your math right, your framework is suitable, and you’ve got a lot of interesting insights from data. Why are you still stuck?

From my experience in coaching sessions, there are 2 scenarios where this happens: (1) your issue tree is not MECE, and (2) if your issue tree is MECE, it does not isolate the problem.

You can try to avoid this in the first place by mastering the MECE principle, improving intuition, as well as aligning with the interviewer early and often.

But what if you still get stuck? The answer is to calmly admit you’ve hit a dead-end, and ask for time to fix the problem; be it the first or second scenario, you have to redraw your issue tree.

Literally use the following script:

“My whole analysis seems going towards a dead-end, which means either part of my issue tree is not MECE or my method of breaking down does not isolate the problem. Either way, I would like to take a timeout to have a look at it.”

You likely get stuck when practicing on yourself. That’s the reason why you need personal coaching. Veteran coaches at MConsultingPrep will give insightful feedback, propose actionable steps, and help you significantly enhance your performance. Find my coach !

How to ask for data

Data is the fuel for the case interview engine. Without it , your analysis can’t progress.

The problem is that interviewers don’t simply give out precious data for free. It has to be earned. There are 4 tips you can use to show that “worthiness”, and prompt the interviewer to supply you with the best information:

1. Create a good impression

2. Explain the purpose of the data

3. Explain the method of acquiring the data

4. Ask open-ended questions

Tip 1: Creating a good impression

The interviewer will love you if you think and act like a real consultant – if you can achieve that, he/she will always give you the best pieces of data available.

In this guidebook, there are countless tips to show your consulting characteristics – I even write a whole chapter on how to install consulting culture into your own personality. Generally, you must always be (1) structured , (2) fact-based, and (3) action-oriented.

Additionally, common people skills and interview tips also apply – show your appreciation by thanking for their help, keep a smile on your face to maintain a positive atmosphere, etc.

Tip 2: Explaining the purpose of the data

Say why you need that data, so the interviewer knows you can actually use it.

There are only two purposes for data in case interviews: (1) to test a hypothesis, and (2) to understand the context.

You can use the following scripts to when to reason your data requests:

“For now, I’m hypothesizing that the root cause of this problem comes from the X branch. Since this hypothesis can only be tested with the data on X, may I have those figures?”< testing hypothesis>

“For now, I hypothesize that the root cause of the problem comes from the X branch of this issue tree. However, to further break down the problem in a spot-on way, to better understand the context of our client’s problem, I will ask a few more questions. Does that sound reasonable to you?” < understanding the context>

Tip 3: Explaining the method to acquire the data

By stating how to get the data, you prove its feasibility and reinforce your data request.

In real consulting projects, data is not always available; the interviewer may rely on this logic and refuse to give you any information. So, when you ask for data, make sure your request is realistic, then state the method to acquire it using these words:

“If this was a real project, this information can be acquired from/by X source/method”.

In our  Prospective Candidate Starter Pack ,   there is a sheet listing all the possible sources of information in consulting projects, which you can download for your own use, along with many other free case interview materials.

Accurately explaining the data acquisition method also shows that you’ve done your homework and you know the consulting industry inside-out. Any interviewer will be greatly impressed.

Ask open-ended questions

This prompts the interviewer to give you data you haven’t thought of.

The precise questions mostly depend on specific cases (meaning you need to sharpen your intuition), but there is a Swiss Army knife here: “Is there anything else?” – which is a question real consultants ask several times a day, at the end of their conversations.

Use open-ended questions when you feel you might be missing something – for example, during clarification – and only after a series of well-defined, close-ended questions. Otherwise, you risk appearing lazy and over-reliant.

What to do when receiving data

Suppose the interviewer agrees to give you data. Now what?

Time to shine! If you do these following 3 steps, even just once, in the interviewer’s mind, you already pass:

1. Acknowledge the data and show appreciation

2. Describe the data, especially its notable features

3. State the implications of the data

Let’s dive into each separately.

Step 1: Acknowledging the data

Simply  thank the interviewer for the interesting piece of data.

Firstly, it confirms that you have received, and can understand the data.

Secondly, it’s always good to give out modest, subtle compliments to the interviewer. Trust me, conducting case interviews is hard work, and the interviewer does appreciate those little compliments.

Last but not least, it buys you a few seconds to fully absorb the new information and minimize any possible silence.

Step 2: Describing the data

Summarize  the most important insights you can extract.

Don’t recite a short essay about the data, there is no time for that. Quickly and mentally calculate all the important points, then state it out loud in 1-2 sentences.

This step has several uses:

It showcases your consulting math skills (chart insights and mental calculation)

It eliminates the silence during your analysis

It helps you quickly memorize the key trends in the data

Step 3: Stating the implications

Concisely explain how the insights from the data  related to the issue tree – do they confirm or reject the current hypothesis? Do they open new areas for investigations?

This part is extremely important because it connects to the action-oriented mindset of actual management consultants while laying solid foundations for your next steps (fact-based).

Example – Handling revenue data

Suppose you’re working on a profitability case (how to fix low profits), and you’re trying to dictate whether the root cause comes from the revenue side.

The interviewer gives you this data:

How would you respond? Try to answer it yourself before revealing the sample answer.

Sample Script - Receiving Data 

Thank you for the very interesting data. (acknowledging)

It seems that our client’s revenue has been increasing steadily throughout four years – around the mark of 20% annual growth, in fact. (describe the data)

This suggests that the problem may not come from this side of the issue tree. However, in order to fully reject the possibility, I need the figures on the revenue of other companies in this industry around this time. Do we have those numbers? (implications)

Delivering the perfect closing pitch

“You have one minute to summarize all of your findings to the client CEO. What would you say?”

Your answer must be short, to-the-point, action-oriented, and client-friendly.

The closing pitch of the case interview is sometimes called the “elevator pitch” , where you supposedly meet the client CEO inside the elevator and must somehow deliver the results of the project before the elevator arrives at its destination floor (it’s even worded like that sometimes).

Regardless of the wording, the principles remain the same, and your closing pitch must consist of these 4 parts:

1. Introduction / Lead-in

2. Summary of the root causes

3. Summary of the solutions

4. Next step

Part 1: Introduction / Lead-in

Open your pitch in a client-friendly way. Remember, consulting is a service – a premium one, in fact.

There is a simple formula for this part of the pitch:

“Mr. CEO, it has been a great pleasure to be working with you on your company’s X problem.”

Everybody loves a little compliment, don’t they?

Part 2: Summary of the root causes

Don’t go into detail about your analysis – show them the results first.

CEOs are busy people, they have no time for a 15-minute break-down of your issue tree. They only care about the “big picture” – “Why is the problem happening?”.

You need to sum up root causes in a structured manner, with a numbered list – in the case interview context, that’s one characteristic the interviewer looks for, and in real projects, it helps the listener follow your pitch.

“After careful analysis, we have found X root causes for the company’s problem: 1… 2… 3… X”.

Part 3: Summary of the solutions

The solutions are what the clients pay for in the first place, so make sure to deliver them clearly and systematically.

This step must also be structured. Additionally, list the solution in the same order as their corresponding root causes, to imply the connection between them (if the root causes are listed as A, B, C, then the solutions should never be C, B, A).

“To solve the aforementioned issues, we propose the X following solutions: 1… 2… 3… X”.

Part 4: Next step

The ending must lead the customer towards a follow-up project, in a client-friendly way.

This step shows that you have an action-oriented mindset and necessary people skills to represent the firm before the clients.

Moreover, follow-up implementation projects are a major source of revenue for the top consulting firms (such as McKinsey, BCG or Bain), so mentioning them in your case interview ending pitch proves that you did the appropriate research before applying.

So here’s what you’ll say when the elevator reaches the destination:

“We would be more than happy to work with you to implement these solutions”.

Develop personal interview scripts

Every tip I’ve mentioned in the previous 7 chapters is for recurring situations in case interviews, and they can be dealt with using formulaic responses.

What that means for you – the candidate – is that you can make personal scripts and learn them by heart until they all become your second nature. That will save you a lot of brainpower to use on the issue tree. This approach has proven successful with all of my coachees, and it’s also a major part of our Case Interview End-to-End Secrets Program. You will find my own personal script I used back in the day, and I will also personally give feedback to scripts of members of the program.

So open your document tool and start writing now. Once you’ve finished the scripts, learn them by heart one at a time. When you feel comfortable with every one of them, you can move up to a higher level and practice with whole cases.

Inside the case interviewer’s mind – Consulting culture

The best way to impress your consulting interviewer is to act like a consultant. And to do that, you need to know what goes on inside their mind – both the conscious and unconscious – then install it into your own personality.

In this chapter, I’ll guide you through 15 ingredients that make up a consulting mind. However, I won’t tell you how to apply this in case interviews because it will sound fake – what you need is to immerse yourself in a consulting environment, and incorporate these “ingredients” into your own mindset.

Responsibility & proactivity

Everyone talks about responsibility and proactivity these days, but in management consulting, we have a much more powerful word – “ownership” . When you “own” the work, you deeply and sincerely care about it, and you always try to go beyond what is required.

If you ever spend your efforts trying to improve a piece of work that your boss already approved, just because you know it is the right thing to do, because you feel so good seeing a job well-done, you have that “ownership” mindset.

In management consulting, you are expected to possess that mindset. In my early days at McKinsey, I was almost thrown out the window for working on a cement project but not knowing where the aggregate mines were (which was outside my responsibilities, but my boss expected me to know it, since I “owned” that cement project).

If you fail to do your work, don’t ever blame anyone or anything. Your responsibility is to draw up contingency plans for the “worst-case scenarios”:

• Missing the deadline because the client did not send you the data? You should have accounted for it in your schedule. 
• Late for work because of a traffic jam? Why didn’t you get up earlier?
• Your pet bite your suit? Any sensible person should have a spare one; even if that one is bitten, aren’t we paying you enough to get a new suit at the store this morning?

In short, if you want to be a consultant,  don’t make excuses.

Result-oriented / Can-do attitude

“There’s nothing I can’t do” – that’s the mindset you need to work in management consulting.

The result orientation inside a consulting firm is intense – saying that it’s “Mission Impossible” everyday would not be an exaggeration, but at the end of the day it’s always “Mission Accomplished”.

The boss doesn’t pay much attention to how you do a task, or what resources it takes, as long as you get it done. The firm has enough resources of every kind to help you with that, so there’s no reason you can’t pull it off.

Top-down communication

Communications made by consultants are always short, concise, to-the-point, action-oriented, and structured.

We were all given full-on lectures by our parents back when we were kids, for wasting food or not exercising (or not studying, for Asians like me). If they were management consultants, most of those lectures would be replaced with powerful, action-oriented messages: “Go study. If you don’t get an A+ for the next test, I’ll have to discipline you”.

A consultant seeing something non-MECE is like your mom seeing your messy bedroom. It’s that discomforting.

If you wish to be a consultant, train yourself to be MECE in everything you do. Once you can be MECE effortlessly, and you start spotting the annoying non-MECE-ness in everything around you, you know you’ve got it. 

If you’re unstructured, you won’t get into the business.

Being “structured” is a pretty vague concept, but everyone in the consulting industry knows when they see it. It’s about being organized, logical, top-down, MECE, etc.. Basically, if you can approach things the same way as real consultants, you will be deemed “structured”

If you can’t meet the deadline, you’re dead (of course, not literally).

A consulting firm works like the perfect machine, where every part operates as intended. When consultants promise to help you with something, you can be nearly 100% sure that they’ll keep their word. This makes work management that much easier.

Consequently, if you start missing the deadlines, you’ll be out of the game soon enough.

Manager from Day 1

You’ll get the idea right away if you watched this video on the job of management consultants:

In short, even as an entry-level associate, you’ll be managing a multitude of resources (experts, specialists, etc.), contents (reports, client data, expert knowledge,…), and stakeholders (the two most important being your client and your boss).

Pulling all of these together to create impactful results would be an impressive feat, even for the best and brightest new hires.

Client first

Don’t. Ever. Piss off. The client.

Management consulting is a special service industry – besides the usual “don’t disrespect the client” and “don’t leave a bad image of the firm”, there’s also “don’t make them hate you while telling them to do what they probably hate.” (which is a good way to sum up a consultant’s job).

In case interviews and PEIs, the interviewer will be asking himself a big question: “Can I trust this guy to represent me and my firm before the client?” – if the answer is anything below a stellar impression, you won’t be receiving an offer.

Consultants will have valid reasons for everything they do.

In both consulting work and case interviews, you need to be very explicit about the basis of your actions – every conclusion must have backing data, every idea must be explained, and every request must serve a purpose. Don’t ever assume that you’re justified.

Being fact-based is part of the foundation for the trust people place in consulting firms, so people who draw ideas out of thin air and act impulsively will never get into the industry.

Effective time & resources management

Every consultant works hard, so the only way to stand out is to work smart.

Yes, I know it’s a buzzword, and I know it’s cliched, but the 80-20 rule really does apply in this line of work. The best performers are always the ones to identify the most important lever and focus on it.

With the intense workload and up-or-out policy at major consulting firms, this skill is vital. Don’t be surprised if you pull all-nighters and work hard all the time but still get fired, while that one guy who goes home at 5 gets promoted. If you want to survive, learn from him.

Key takeaways & key messages

To a management consultant, everything has a key takeaway.

Consultants are efficient people, they don’t simply waste time, effort, and resources on irrelevant things. Things are only worthy of their attention if they have an interesting, helpful “so what”:

• You tell a story? So what?
• You perform a data analysis? So what are your key insights, and what’s the implication?
• You draw a slide? What’s the key message you’re trying to deliver?

If you already think like this, trust me, the interviewer will love you.

Think on your feet first

You should only ask for leadership assistance only  after you’ve thought well about the problem.

Just pause for a second and think: would you be more ready to help someone who really tries their best at the job or someone who does nothing and relies solely on you?

The same thing is true in consulting work, and even in case interviews: the interviewer will assist you if you can deliver well-informed opinions.

With that said, “asking without thinking first” is a very common mistake in case interviews, which you can see in the numerous examples from our End-to-End Secrets Program. 

Align early, align often

Always try to reach and maintain a consensus with co-workers and your boss, from the most mundane tasks to the largest projects.

Nobody wants to spend a whole week building a model that the team doesn’t need; it’s a huge waste of time and resources. As such, consultants have this aligning habit very early and often – a little time spent on reaching an agreement now will save a lot of trouble later.

Remember to align in case interviews as well – at the start of the case, and every important step.

Consultants are very action-oriented people who always think about the next step.

Every meeting, phone call, even random catch-up must end with everybody being explicitly and absolutely clear about what to do next.

So what’s YOUR next step, after reading this guidebook?

Scoring in the McKinsey PSG/Digital Assessment

The scoring mechanism in the McKinsey Digital Assessment

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Marketing case study 101 (plus tips, examples, and templates)

Summary/Overview

If you’re familiar with content lines like, “See how our fancy new app saved Sarah 10 hours a week doing payroll,” you’ve encountered a marketing case study. That’s because case studies are one of the most powerful marketing tools, showcasing real-world applications and customer success stories that help build trust with potential customers.

More than 42% of marketers use case studies in their marketing strategy. Let’s face it — we love testimonials and reviews. People love hearing customer stories and experiences firsthand. In fact, 88% of consumers view reviews before making a purchase decision. Case studies work similarly by providing prospective customers with real-life stories demonstrating the brand’s success.

Case studies provide a more in-depth view of how your product solves an existing problem — something potential buyers can relate to and learn from.

In this article, we take a closer look at what marketing case studies are, why they’re important, and how you can use them to improve your content marketing efforts. You’ll also learn the key elements of a successful case study and how to turn a good case study into a great case study.

What is a marketing case study?

A case study is a narrative that documents a real-world situation or example. A marketing case study is a detailed examination and analysis of a specific strategy, initiative, or marketing campaign that a business has implemented. It’s intended to serve as an all-inclusive narrative that documents a real-world business situation and its outcome.

Marketing case studies are tools businesses use to showcase the effectiveness of a particular tool, technique, or service by using a real-world example. Companies often use case studies as sales collateral on websites, email marketing, social media , and other marketing materials. They provide readers with a firsthand look into how your product or service has helped someone else and demonstrate the value of your offering while building trust with potential customers.

Some common key components of a marketing case study include:

• Context: A case study begins by describing the business’s situation or problem. This often includes challenges, opportunities, or objectives.
• Strategy: An outline of the tactics or strategy utilized to address the business’s situation. This includes details such as the target audience, messaging, channels used, and other unique aspects of the approach.
• Implementation: Provide information about how the strategy was implemented, including timeline, resources, and budget.
• Results: This is arguably the most crucial part of a marketing case study. Present the results through data, metrics, and key performance indicators (KPIs) to demonstrate the impact of the strategy. The results section should highlight both qualitative and quantitative data.
• Challenges and Solutions: A great case study not only focuses on the successes but addresses any obstacles faced during the campaign. Make sure to address any challenges and how they were overcome or mitigated.
• Customer Feedback: Including testimonials or quotes from satisfied clients is a great way to add credibility and authenticity to a case study. Choose customer feedback that reinforces the positive outcomes of the strategy taken.
• Visuals: Compelling case studies include visuals such as graphs, charts, images, videos, and infographics to make the information presented more engaging and easier to understand.
• Analysis: An optional way to conclude a case study includes discussing key takeaways, insights, and lessons learned from a campaign.

Case studies can help you connect your product to the customer’s needs by providing a real world examples of success and encouraging conversions.

Benefits of marketing case studies

Some of the key benefits of using case studies in your marketing efforts include the following:

• Building trust and credibility. You build trust and credibility with potential clients or customers by demonstrating real world success stories. In-depth looks at how your products or services have helped other businesses or people achieve success can increase customer loyalty and encourage repeat business.
• Learn best practices. Learn from strategies employed in successful case studies and apply similar approaches to future campaigns.
• Enhancing sales and conversions. By highlighting the real world results your products or services have delivered, case studies can be a powerful tool for boosting sales. They can help demonstrate the value of your offering and persuade your target audience to make a purchase.
• Explain how your business generates results. Case studies are a compelling way to share key takeaways with your target audience and showcase your brand.
• Use them as content marketing material. Use case studies as content for marketing purposes on websites, social media, and beyond.

Case studies can help your business stand out and achieve success. By highlighting the real world results you’ve delivered, you can use case studies to boost sales, build customer loyalty, and compellingly showcase your business.

Tips on how to write an effective marketing case study

Are you ready to write a compelling case study? Get started with these tips.

Develop a clear and compelling headline

You have about 10 seconds to communicate your value proposition to keep customer attention. Whether you’re designing a new landing page or making a long-term plan for your brand’s content marketing strategy , the headline is the most crucial part.

A compelling title should capture readers’ attention and make them want to read more. To craft a compelling headline:

• Understand your audience: Before crafting a headline, ensure you know your target audience — what are their pain points, interests, and needs?
• Highlight the most significant result: Focus on the most impactful result achieved in the case study. What was the primary outcome of the strategy implemented?
• Keep it brief: Keep your headline concise and to the point. Try to keep your headline under 12 words.
• Use action words: Incorporate action verbs such as “achieved,” “transformed,” or “boosted” to convey a sense of accomplishment.
• Include data: Numbers make your headline more credible. For example, if the case study achieved a 75% increase in sales, include that in the headline.
• Emphasize benefits: Focus on the positive changes or advantages the implemented strategy brought to the client or business. Use these as selling points in your headline.
• Make it unique and memorable: Avoid generic phrases to make your headline stand out from the competition.
• Use keywords wisely: Incorporate relevant keywords that align with the case study and your target audience’s search interest to improve search engine visibility through search engine optimization (SEO).
• Consider subheadings: If you cannot fit all the necessary information in a headline, consider adding a subheading to provide additional context or details.

Here are some examples of clear and convincing case study headlines:

• “Achieving a 150% ROI: How [XYZ] Strategy Transformed a Startup”
• “How Optimized SEO Tactics Skyrocketed Sales by 80%”
• “Mastering Social Media: How [ABC] Brand Increased Engagement by 50%”
• “The Power of Personalization: How Tailored Content Quadrupled Conversions”

Write relatable content

Almost 90% of Gen Z and millennial shoppers prefer influencers who they consider relatable. Relatability is part of building trust and connection with your target audience.

When writing your case study, make content that resonates with readers and speaks to their pain points. The best marketing doesn’t just increase conversion rates — it also serves your customers’ needs. To write content that really resonates with your target audience, make sure to:

• Understand your audience: To successfully write relatable content, you first need to understand your target audience — their interests, pain points, and challenges. The more you know about your target audience, the better you can tailor your content to their needs.
• Identify pain points: As mentioned above, identify challenges your target audience may face. Make sure to highlight how the product or service in the case study can effectively address these pain points.
• Tell a story: Create a narrative that follows a standard story arc. Start with a relatable struggle that the customer or business faced and describe its associated emotions.
• Use real customer feedback: Incorporate quotes or testimonials from actual customers or clients. Including authentic voices makes the content more relatable to readers because they can see real people expressing their experiences.
• Use relatable language: Write in a tone to which your audience can relate. Only include overly technical terms if your target audience solely consists of experts who would understand them.
• Use social proof: Mention any recognitions, awards, or industry acknowledgments that may have been received by the customer or business in the case study.
• Encourage engagement: Urge readers to share their own challenges or experiences related to the subject matter of the case study. This is a great way to foster a sense of community.

Outline your strategies with corresponding statistics

Whether you’re showing off the results your marketing team achieved with a new strategy or explaining how your product has helped customers, data and research make it easier to back up claims.

Include relevant statistics in your case study to provide evidence of the effectiveness of your strategies, such as:

• Quantitative data: Use numerical data to quantify results.
• Qualitative data: Use qualitative data, such as customer testimonials, to back up numerical results.
• Comparisons: Compare the post-campaign results with the pre-campaign benchmarks to provide context for the data.
• Case study metrics: Include specific metrics relevant to your industry or campaign if applicable. For example, in e-commerce, common metrics could include customer acquisition cost, average order value, or cart abandonment rate.

By incorporating relatable outcomes — such as cost savings from new automation or customer responsiveness from your new social media marketing campaign — you can provide concrete evidence of how your product or service has helped others in similar situations.

Use multiple formats of representation

People love visuals . It doesn’t matter if it’s an infographic for digital marketing or a graph chart in print materials — we love to see our data and results represented in visuals that are easy to understand. Additionally, including multiple representation formats is a great way to increase accessibility and enhance clarity.

When making a case study, consider including various forms of representation, such as:

• Infographics: Use infographics to condense critical information into a visually appealing, easy-to-understand graphic. Infographics are highly sharable and can be used across marketing channels.
• Charts: Use charts (bar charts, pie charts, line graphs, etc.) to illustrate statistical information such as data trends or comparisons. Make sure to include clear labels and titles for each chart.
• Images: Include relevant photos to enhance the storytelling aspect of your case study. Consider including “before and after” pictures if relevant to your case study.
• Videos: Short videos summarizing a case study’s main points are great for sharing across social media or embedding into your case study.
• Tables: Use tables to help organize data and make it easier for readers to digest.
• Data visualizations: Include data visualizations such as flowcharts or heatmaps to illustrate user journeys or specific processes.
• Screenshots: If your case study involves digital products, include screenshots to provide a visual walkthrough of how the product or service works.
• Diagrams: Use diagrams, such as a flowchart, to explain complex processes, decision trees, or workflows to simplify complicated information.
• Timelines: If your case study involves a timeline of specific events, present it using a timeline graphic.

Use a consistent design style and color scheme to maintain cohesion when incorporating multiple formats. Remember that each format you use should serve a specific purpose in engaging the reader and conveying information.

Get your case study in front of your intended audience

What good is a compelling case study and a killer call to action (CTA) if no one sees it? Once you’ve completed your case study, share it across the appropriate channels and networks your target audience frequents and incorporate it into your content strategy to increase visibility and reach. To get your case study noticed:

• Take advantage of your website. Create a dedicated section or landing page on your website for your case study. If your website has a blog section, consider including it here. Optimize the page for search engines (SEO) by including relevant keywords and optimizing the meta description and headers. Make sure to feature your case study on your homepage and relevant product or service pages.
• Launch email marketing campaigns. Send out the case study to your email subscriber list. Be specific and target groups that would most likely be interested in the case study.
• Launch social media campaigns. Share your case study on your social media platforms. Use eye-catching graphics and engaging captions to draw in potential readers. Consider creating teaser videos or graphics to generate interest.
• Utilize paid promotions. Use targeted social media and search engine ads to reach specific demographics or interests. Consider retargeting ads to re-engage visitors who have previously interacted with your website.
• Issue a press release. If your case study results in a significant industry impact, consider issuing a press release to share the exciting news with relevant media outlets or publications.
• Utilize influencer outreach. Collaborate with influencers who can share your case study with their followers to increase credibility and expand your reach.
• Host webinars and presentations. Discuss the case study findings and insights through webinars or presentations. Promote these events through your various marketing channels and make sure to encourage participation.
• Utilize networking events and conferences. Present your case study at industry-related conferences, trade shows, or networking events. Consider distributing printed or digital copies of the case study to attendees.
• Utilize online communities. Share the case study in relevant online forums and discussion groups where your target audience congregates.
• Practice search engine optimization (SEO). Optimize the SEO elements of your case study to improve organic search ranking and visibility.

Remember, the key to successfully promoting your case study is to tailor your approach to your specific target audience and their preferences. Consistently promoting your case study across multiple channels increases your chances of it reaching your intended audience.

Marketing case study examples

Let’s look at some successful marketing case studies for inspiration.

“How Handled Scaled from Zero to 121 Locations with HubSpot”

Right away, they lead with compelling metrics — the numbers don’t lie. They use two different formats: a well-made video accompanied by well-written text.

The study also addresses customer pain points, like meeting a higher demand during the pandemic.

“How AppSumo grew organic traffic 843% and revenue from organic traffic 340%”

This case study from Omniscient Digital leads with motivating stats, a glowing review sharing a real user experience, and a video review from the AppSumo Head of Content.

The case study information is broken down into clearly marked sections, explaining the benefits to their target audience (startups) and providing plenty of visuals, charts, and metrics to back it up.

“How One Ecommerce Business Solved the Omnichannel Challenge with Bitly Campaigns”

Download this Bitly case study from their site to see the details of how this company made an impact.

Not only is it well designed, but it also tackles customer challenges right away. The most compelling types of case studies serve their audience by showing how the product or service solves their problems.

Bitly nails it by listing obstacles and jumping right into how the brand can help.

Marketing case study template

Use this basic template to better understand the typical structure of a business case study and use it as a starting place to create your own:

Case Study Title

Date: [Date]

Client or Company Profile:

• Client/Company Name: [Client/Company Name]
• Industry: [Industry]
• Location: [Location]
• Client/Company Background: [Brief client or company background information.]

Introduction:

• Briefly introduce the client or company and any necessary context for the campaign or initiative.
• Problem statement: Describe the specific challenge or problem faced by the client or company before implementing the campaign or initiative.
• Strategy: Explain the strategy that was implemented to address the challenge. Include details such as target audience, objectives, goals, and tactics.
• Implementation: Provide a timeline of the strategy’s implementation, including key milestones and other notable considerations taken during execution.
• Outcomes: Present the qualitative and quantitative results achieved through the implemented strategy. Include relevant metrics, statistics, and key performance indicators (KPIs).
• Comparative data: Compare the post-campaign results to pre-campaign benchmarks or industry standards.

Analysis and Insights:

• Key insights: Summarize insights and lessons learned from the campaign and discuss the campaign's impact on the client or company’s goals.
• Challenges faced: Address any obstacles encountered during the campaign and how they were mitigated or overcome.

Conclusion:

• Conclusion: Summarize the campaign’s overall impact on the client or company. Highlight the value that was delivered by the implemented strategy and the success it achieved.
• Next Steps: Discuss potential follow-up actions, recommendations, or future strategies.

Testimonials:

• Include quotes or testimonials from the clients or customers who benefitted from the campaign.
• Incorporate relevant visuals to illustrate key points, findings, and results.

The above template is a great way to get started gathering your ideas and findings for a marketing case study. Feel free to add additional sections or customize the template to match your requirements.

Craft a compelling marketing case study for your business

Are you ready to make your marketing case study shine? With Adobe Express, you can make high-quality infographics and presentations that take your case studies to the next level.

Choose from our library of designed templates, or make it yourself with powerful tools and a library of ready-to-use graphic elements.

Get started with Adobe Express today to make compelling marketing case studies that engage your audience and drive conversions.

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A Comprehensive Guide to Case Interview Prep [tips updated 2024]

• Last Updated March, 2024

Rebecca Smith-Allen

Former McKinsey Engagement Manager

What Are the Best Ways to Prepare for Interviews with Management Consulting Firms?

Congratulations!

If you’re on this page, you’re probably considering a career in management consulting or are already in the middle of the interview process.

We’re here to help.

We’re a team of more than 20 former McKinsey, Bain, and BCG consultants and recruiters (our average time in consulting is 13 years each) and we put together this guide to help you prepare for getting your consulting offer.

After reading this, we hope “congratulations” is also what you’ll hear when you leave your final interviews.

Management Consulting Jobs Are in High Demand

Management consulting jobs are among the most sought-after positions in on-campus recruiting, whether you’re applying as an undergraduate or from a business school. 

Consulting firm recruits also include law school students, Ph.D. program candidates and people who’ve already started their professional careers in other industries.

Management consulting firms are filled with smart, driven people working to solve hard business problems. 

This work is a great launching pad for your career. 

Top consultancies offer competitive salaries and also invest significantly in employee development. A job at a management consulting firm will expose you to multiple different industries and types of business problems. 

There’s a lot to like about a career in consulting!

Competition for Jobs with Top Consulting Firms Is Fierce, so Preparation Is Essential.

But attractive jobs are usually highly competitive, and that’s definitely the case in management consulting. 

Top firms typically make offers to only about 1% of the people who apply. It’s not impossible to get a job with firms like McKinsey, Bain, and BCG (also known as the MBB firms), but it requires preparation.

In particular, successful candidates know that consulting firms use a particular type of interview question — the case study interview — and they know what recruiters are looking for in answers. 

In this article, we’ll help you prepare for management consulting interviews by answering the following questions:

• What is a case interview?
• How do I answer a case question?
• What is the best approach for case interview prep?

We’ll also provide tips and tricks that will help you to ace your case.  

Whether you’re aiming for a job at one of the MBB firms (McKinsey, Bain, or BCG), with other consultancies such as AT Kearney, L.E.K. or Oliver Wyman, or with the consulting arms of the large accounting firms such as Deloitte, Accenture, PwC, Ernst & Young, or KPMG, we can help you get there.  

What Is a Consulting Case Study Interview (also known as the “Case Interview”)?

A Case Study Interview is a real-time problem-solving test used to screen candidates for their ability to succeed in consulting. 

The case is presented as an open-ended question, often a problem that a specific type of business is facing, that an interviewer asks a candidate to solve.

Sample Case Interview Questions

Sales of drinks in Coffee Bean cafes are decreasing. What is causing the sales decrease?

Turnover of store employees at Burgers R’ Us restaurants has increased over prior years. What would you advise the company to do?

Donations to Caring Hands are decreasing, straining the non-profit’s ability to help the families it targets. What should the organization do to turn this around?

Case Interview 101 – The Basics for Beginners

You don’t need an MBA or an undergraduate degree in economics to land a job in consulting. But you will need to learn some business basics to be able to crack case interviews.

This section covers the concepts non-business students need to become familiar with, such as:

• The income statement – an overview
• Common formulas used in case interviews
• Business concepts you need to know
• Common types of case interviews

Case Interview 101, Part 1: The Income Statement

To solve cases, you first need to understand broadly how companies make money. For any specific case, you’ll want to make sure you understand how that company makes money. 

The most common way companies make money is by selling a product or service for more than it costs to produce, thereby earning a profit . 

Companies use three major financial statements to monitor and report their financial performance: 

(1) The income statement (2) The balance sheet (3) The cash flow statement 

An income statement (or profit and loss statement or statement of revenue and expenses) is a record of a company’s profit or loss over a specific period of time . The profit or loss is calculated by taking the revenues generated and subtracting the expenses incurred over the same period of time. The income statement has 3 major categories: Revenue, Expenses, and Profit or Loss .

Revenue is the total amount of money generated by a company from selling its products or services. It is also referred to as gross sales or “top line” as it sits at the top of the income statement. 

Costs are expenses incurred by a company to make its products or services. In the income statement there are three types of costs: 

• Costs of goods sold (COGS) or cost of sales are the direct costs of making products or providing a service. For a burger restaurant, for example, the COGS would include things like the meat, bun, and hourly labor of cooks, cashiers, and shift supervisors.
• Operating expenses are costs that are indirectly tied to the making of products or services. These include selling, general, and administrative (SGA) expenses, management salaries, depreciation, and amortization. Depreciation and amortization are non-cash expenses that reflect the value of big assets like machinery or buildings going down over time. For example, if our burger restaurant buys a grill to cook burgers on for $1,000 and expects it to last for 10 years, it would spread out the cost over that period, $100 per year. Other operating expenses for our burger restaurant would include things like advertising, the rent on the company’s headquarters, and the salary of the CEO.
• Costs incurred from non-operating activities such as interest paid on loans. These costs are rarely part of case interviews.

Profit or Loss :

Income statements generally show 3 levels of profit (loss) or earnings: Gross Profit; Earnings Before Interest, Tax, Depreciation and Amortization (EBITDA); and Net Profit.

Gross profit or loss

This is calculated by subtracting COGS or the cost of sales from the total revenue generated. If the costs are higher than the revenue generated, then the company has made a loss.

EBITDA and EBIT

EBITDA is calculated by subtracting operating expenses from the gross profit. EBIT is calculated by subtracting depreciation and amortization from EBITDA. 

As mentioned above, depreciation and amortization are non-cash expenses. So if the amount of cash generated by selling a product or service is important to your analysis, you should look at EBITDA. If looking at a more fully loaded cost is the focus of your analysis, use EBIT.

Net Profit or Loss

This is calculated by subtracting interest and tax from EBIT. It is also known as Net Income and refers to the profit (or loss) for the period. This is also known as the “bottom line” as it sits at the bottom of the income statement. This is the ultimate measure of whether a company’s activities are profitable during a certain time period when all costs are considered.  

Case Interview 101, Part 2: Common Formulas Used in Case Interviews

Here is a look at common formulas used in case interviews.

Profitability formula:

The profitability formula is used in profit (or loss) related cases. The profit or loss can be calculated using the following formula:

             Profit (or Loss) = Revenue – Costs

As mentioned above:

• Revenue is the money generated from selling a product or service. It can be broken down into price per unit and number of units sold . 
• Costs are the expenses incurred to make the product or service and can be broken down into cost per unit and number of units sold . 

The formula can further be broken down into:

            Profit (or Loss) = (price per unit x number of units sold) – (cost per unit x number of units sold)

There are other ways to break down revenue and cost depending on the case question.

• Revenue can be broken down by product or service line, customer type, or geographic region (e.g., North American, Europe, Asia)
• Costs can be broken into fixed costs and variable costs, or components such as overhead, salary, etc.

It is often helpful to break costs down into fixed and variable to solve consulting cases, and understanding the difference is important. Fixed costs, like rent for a store or the cost of equipment, are incurred regardless of how many units a company sells; whereas variable costs are only incurred with the production of each additional unit. Because of this, it can be helpful to sell incremental units even at a loss for a short period of time if it helps cover fixed costs.

So the profitability formula can also be written as:

            Profit (or Loss) = (price per unit x number of units sold) – (fixed + variable costs)

P rofitability example:

Your client, a manufacturer, is facing a decline in profits. Your client wants your help solving this problem. We’ll use this example to demonstrate all the formulas in this section.

The first step you could take is to calculate the past year’s profit given the following information:

• Number of units sold = 1 million
• Price per unit = $10
• Cost per unit = $8

          Profit (or Loss) = ($10 x 1 million) – ($8 x 1 million)

          Profit = $2 million

Profit margin formula:

Profit margin indicates how many cents of profit the company generated for each dollar of sale. It’s typically used to measure the financial health of a company . You can compare the profit margin of a company against its historical margins to evaluate whether its current performance is better or worse than past performance. You can also compare it against companies in the same industry to evaluate whether its financial performance is stronger or weaker.

Profit margin can be calculated using the formula:

          Profit margin = (Profit / Revenue ) *100%

Profit margin example:

To calculate the profit margin, first, you need to calculate company revenues as follows:

            Revenue = 1 million x $10

           Revenue = $ 10 million

You can now calculate the profit margin as follows:

            Profit margin = ($2 million / $10 million) x 100%

           Profit margin = 20%

Note you can combine both the formulas for faster calculation.

Market share formula:

Market share is the size of the company in relation to the size of the industry in which it operates, where size is typically measured in annual revenues. It is used to compare the size of a company to its competitors and the industry as a whole. It can be used in market entry cases because industries with a lot of small competitors are generally easier to enter than ones with only a few big competitors. It’s also used in profitability cases because, in general, companies with a large market share also have more market power to do things like set prices.

Market share can be calculated using the following formula:

            Market share (%) =total company revenue / total industry revenue  

Market share example:

Using the example from above, say you decide to determine the company’s market share as part of your analysis. In this example, the industry has annual revenues of $ 200 million.

            Market share (%) = $ 10 million / $ 200 million

           Market share = 5%

Growth Rate Formula:

This refers to the specific change of a variable within a specific period of time. Growth rates can be used in assessing the financial performance of a company over time. For example, high revenue growth rates would likely be a sign of strong financial performance. High cost growth rates may be a sign that a company is having financial trouble.

The growth rate is calculated using the formula:

            Growth rate (%) = (New – Old) / Old

Growth rate example:

To calculate the manufacturer’s revenue growth rate. Last year’s revenue was $ 9.5 million therefore the revenue growth rate is:

            Revenue growth rate = ($10 million – $9.5 million) / $9.5 million

            Revenue growth rate =5%

You can assess whether a company’s growth rate is strong by comparing it to other growth rates such as:

• The company’s growth in the prior year.
• The growth of the market or of competitors.
• The rate of inflation.

Mature companies are likely to see single-digit growth rates unless they launch a very successful new product or they acquire a company. On the other hand, startup investors typically expect double- or triple-digit annual growth during a company’s early years.

Return on investment formula:

Return on investment (ROI) is a profitability metric that indicates how well an investment performed (or will perform). It can be used to compare the profitability or efficiency of an investment or decide which of alternative investments to make. 

ROI is calculated using the following formula:

            ROI (%) = Profit / Cost of investment

ROI example:

Suppose our manufacturer mentions that they purchased state-of-the-art machinery to make their product. It cost $8 million. You decide to calculate the ROI on this investment. 

            ROI  = $2 million / $8 million

           ROI=25%

Break-even formula:

Break-even is the point at which the total revenue and total costs are equal, meaning there is no loss or profit at that point. Break-even is typically used to help companies determine the minimum number of units that need to be sold to cover all the costs used to produce those units. 

An executive might want to know that they could break even at 100,000 units sold because if she thought they could sell more than that, it would be profitable to enter the market. If she thought they’d sell less, they wouldn’t enter the market.

Break-even can be calculated using the following formula:

              Breakeven (units) = Fixed costs  / (sales price – variable cost per unit)

Break-even example:

If a product required a $50,000 investment in equipment (a fixed cost), sold for $5, and cost $4 per unit in variable costs, its breakeven would be: 

              Breakeven (units) = $50,000  / ($5 – $4)

              Breakeven= 50,000 units

Payback period formula:

Managers may also look at the payback period on an investment or, in other words, how long it would take to earn back the cash required to enter a new business. This investment could be a new piece of equipment or a marketing campaign needed to create customer awareness of a new product. This is a different way of looking at the same question that the breakeven formula asks: is it worth my while to make this investment?

The payback period can be calculated using the following formula:

              Payback (years) = Investment cost / annual profit

Payback years example:

Using the same example, you decided to calculate the payback years of the new state-of-art machinery

            Payback (years)= $8 million / $2 million

           Payback = 4 years

Capacity of equipment:

The capacity of equipment is the maximum output or units a piece of equipment can produce with the available resources over a set period of time.

Capacity can be calculated using the following formula:

            Capacity (units) =Total capacity / Capacity required to make one unit

Capacity example:

To calculate the capacity of our manufacturer’s machinery, we’d need to know that it can produce a unit every 10 minutes and that the client operates 12-hour shifts.

              Capacity (units) = 12 hours x (60 minutes per hour) / 10 minutes

             Capacity = 72 units / day

The utilization rate of equipment:

Utilization rate is the percent of available time the equipment or machinery is actually used. It measures efficiency and can be used by companies to make informed decisions on timelines and inventory, or whether additional equipment is needed.

The utilization rate of equipment can be calculated by the following formula:

              Utilization rate (%) =Actual output / Maximum output

Utilization rate example:

Using the same example, imagine that the management tells you that in a 12-hour shift, the machine produces 50 units and there are two 45-minute breaks.

First, you would need to calculate the potential output.

               Actual hours of operation = 12 hours – 1.5 hours = 10.5 hours

               Potential output = (10.5 hours / 12 hours) x 72 units

               Potential output = 63 units

Then, calculate the utilization rate.

                Utilization rate = 50 units / 63 units

                Utilization rate = 79%

Utilization rates raise interesting issues in a case. It raises questions such as:

• If potential output is 63 units, why are only 50 being produced (e.g., machine downtime, worker errors), and what can be done to solve these problems?
• Could the company stagger employee breaks to get potential output up to 72 units from 63?

Case Interview 101, Part 3: Business Concepts You Need to Know

Here are some common business concepts that you need to know as you prepare for your interview.

Process : This is a set of actions or operations that lead to results (products or services). This typically describes how a company makes its products or services. The steps can be performed by workers, equipment, or computers. In a case, this is mostly used in situations where a client would like to make their processes more efficient. For example, a client who is in logistics would like to reduce the cost of its operations by improving the efficiency of its processes, such as by reducing equipment downtime or scheduling deliveries according to time-saving routes. 

Best practices: Best practices are methods or techniques that are considered to be the working standards and guides in a given situation . In a business situation, best practices are used to benchmark companies against the standard and can serve as a roadmap on how to improve the efficiency of their operations.

Hypotheses: Tentative answers to a problem or an assumption based on some evidence. The hypothesis-driven approach is a common approach to solving problems in the consulting world because consultants don’t want to waste time fully researching all possible solutions. They want to move quickly to the most likely answer and then test whether it is or is not the best answer. This approach can be used to solve case interview questions where you first assume an answer to the case problem and check whether this is true or not through analysis. If it is not true, you revise your hypothesis.

Issue tree: This is a common approach in consulting used to solve complex problems . An issue tree is used to break down complex problems into key components in a structured manner. In a case interview, you can use the issue tree to break down the client’s problem into manageable chunks or to break down a formula such as the profitability formula into key components.

Read our article for more information on Issue Trees .

MECE: MECE stands for mutually exclusive and collectively exhaustive . It is a way of bucketing problems, ideas, or solutions with no overlapping between the buckets and with each item having a place in one bucket only (mutually exclusive), and with the buckets including all possible items relevant to the context (collectively exhaustive). In a case interview, you can use MECE with the issue tree when breaking down problems or when identifying solutions for the client. MECE issue trees are considered the gold standard for problem-solving so this concept is very good to know. 

You can also use the concept of MECE when segmenting a market – for example, if you are sizing a market and intend to lay out different purchasing behavior assumptions for different customer segments. For example:

Customer segment                         Purchase frequency for items from coffee shops

Women under 30                             4 times per week, purchase includes food item plus beverage Men under 30                                     2 times per week, purchase includes only beverage Women 31 and over                         4 times per month, purchase includes only beverage Men 31 and over                                 3 times per month, purchase includes only beverage

Note how in this example, everyone would fall into one customer segment and only one customer segment. Read our article for more about MECE problem-solving .

Root causes: This is the core issue or main reason for a problem . It is used in problem-solving to identify solutions that appropriately address the problem. The term root cause is used to distinguish between symptoms of a problem, which may be obvious, and the underlying issue that needs to be solved, which may not be obvious. For example, a decline in sales volume is a symptom. The root cause could be high prices, poor product quality, product unavailability, or any number of other issues. You can’t fix the symptom of declining sales volume until you identify the root cause behind the problem. 

In a case interview, you’ll need to identify possible causes of the client’s problem and then ask questions and do analysis to identify the root cause. Once you do, you can make the most appropriate recommendations for the client.

Break-even analysis: This is the calculation used to determine the point at which the total revenue and total costs are equal meaning there is no loss or profit. In business situations, it helps determine at which point the business, investment, or new product or service will become profitable. In case interviews, you can use the break-even analysis to determine whether a client should make a certain investment, say in machinery or a new product line, based on how likely it is that they’ll exceed the break-even threshold.

Case Interview 101, Part 4: Common Types of Case Interviews

In this section, we will review 4 common types of case interviews.

Market-sizing Questions

Market-sizing questions typically appear in cases where clients want to grow or expand their business such as market entry or profitability cases. The client either wants to understand the market size of the current business or of a potential new product line or geography or customer group to understand whether it is big enough to be interesting. 

Sample case questions

“How many cups of coffee does Starbucks sell in a day?” “Estimate the fleet size of Delta Airlines.” “Estimate market size for air-conditioners in New York.”  “Estimate market size for an anti-smoking pill in the U.S.”

You are not expected to know the exact answer to market-sizing questions. Instead, the interviewer wants to see that you can use simple math and logical deduction to build out an answer. For these questions, it is good to memorize a few facts that will help you make assumptions. For example, a good place to start is the population of the U.S. or the population of a U.S. city (or country and city that you live in). 

For more information and examples, read our article on Market-sizing Cases .

Revenue Growth Case Interviews

In revenue growth cases, the client typically wants to grow their business. This can be done by increasing revenue of the current product/service line, by adding a new product/service line, or by selling to a new type of customer or in a new geography. 

They could do this by building a new offering, buying another company, or partnering (joint venture) with another company that already offers what they want to sell. 

“A manufacturer sees its revenue stagnating. It wants to know whether raising price or selling more units is a better path to growing revenue, and how to pursue it.”

“A local theater house thinks there is an opportunity to expand their current offerings to the very loyal client base. What new product or service could they offer their customers? What would be the impact on revenue from expanding their offerings?”

“A regional fast-food chain, serving hamburgers and fries, is experiencing increasing demand outside of its main regions of operation and wants to expand. What regions would have the biggest impact on its revenue?”

You should remember that there are multiple ways to achieve revenue growth. One thing to consider is the client and industry context when tackling revenue growth questions. For example, does the client have a good market size in the industry? Does the client have the capability to offer new products/services? Is the industry highly competitive?

For more information, read our article on Revenue Growth Cases .

Market Entry Case Interviews

In market entry cases, the client wants to know if they can enter a market and be profitable. For example, entering a different geography, new demography, or new product/service line. (Note, there can be overlap between revenue growth cases and market entry cases.)

“A U.S.-based consumer electronics manufacturer is thinking of expanding into emerging markets. What is the potential revenue growth if they choose to expand into India?”

“A telecom operator is looking to diversify their presence in the U.S. and wants to enter the video streaming market. How can they capture a significant market share?”

“A renewable energy company that specializes in large equipment such as windmills wants to enter the retail market and sell smaller equipment directly to individual homes. They would like to know if this is a good idea.”

There are a number of frameworks you can build off of to tackle a market-entry case. For example, Porter’s Five Forces, Business Situation Framework or 3C&P (customer, competition, company, and product), and Supply & Demand among others. It is key to consider the “new” market context as well as the client context to enter this market. 

To find out more on this, read our article on The Market Entry Framework .

Cost Optimization Case Interviews

Cost optimization cases or questions can be part of a profitability case where a client is experiencing declining profitability or when a client wants to improve efficiency.

“A national hotel chain has seen its operational costs significantly increase over the last year and would like you to figure out why.”

“A juice manufacturer has been experiencing a steady increase in revenue over the past 5 years however their cost has been increasing at a faster rate, meaning the profits have not grown as expected. What is the root cause of the significant increase in cost?”

“A tour company would like to reduce their costs due to the falling number of tourists over the past few years. What ways would you recommend for them to reduce their costs?’

For cost optimization cases, remember to break down the cost components. For example, you can break them down into fixed and variable costs or cost of goods sold and operational costs and then brainstorm the categories of each that will likely apply to the company at hand. This will make it easier to identify what costs should be reduced or eliminated.

Check out Types of Case Interviews article for more detail on these types of cases and more.

Why Do Top Consulting Firms Use Case Interview Questions?

Management consultancies are not the only types of firms that use case interview questions to evaluate candidates. 

Investment banks, consumer marketing companies, and others use the case interview structure in their interview process.

Because case interviews show how a candidate would problem solve in real time. 

Solving complex, ambiguous problems is at the heart at what consultants do every day.

This type of interview question mimics the analytic process a consultant might go through in a 3-month project, but it does it in 30 minutes, the time allowed in a typical interview. 

The interviewer can probe whether a candidate’s approach is well-structured, creative, and displays good business sense.

How Do Consulting Recruiters Evaluate Candidates?

The main thing that recruiters are looking for in case study interviews is whether or not they’d feel comfortable putting a candidate in front of a client. To assess that, they ask themselves these questions:

• Is this person able to do the job? Do they have the analytic skills to solve tough business problems?
• Is this person client-ready? Are they knowledgeable, professional, and confident enough to work effectively with client staff and leaders?
• Is this someone I’d want to work with? This interview question is sometimes referred to as the airport test. It comes down to, “Would I want to be stuck in an airport with this person if the weather was bad and our flight was delayed?” It assesses whether an individual is smart, fun and passionate about the projects they take on.
• Is this person coachable? No one expects a recruit to know the answer to every thorny business issue right out of undergrad, or even right out of business school, but they do want someone who is willing and able to take suggestions and improve their analysis. Show you are coachable by listening for feedback as you answer a case study interview question and using suggestions to steer you toward the right solution.

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

Consulting Case Prep Takes Time – So Start Early

If you walk into your first consulting interview without having practiced case study interviews beforehand, you’re in for a painful experience. Case questions can cover any industry and multiple different types of business problems, so you’re unlikely to get lucky and know the answer.

We suggest your start your consulting case prep a few weeks before your interview. Starting with more lead time is even better. This will allow you to watch/read through a few consulting cases to get a sense for what to expect (continue to our case videos below for one example!) It will also give you time to find a couple friends or classmates who are also applying to consulting firms. You can give each other mock case interviews and be even more prepared.

Learn How to Case Quickly by Mastering Each of the 4 Parts of the Case

When you’re starting your consulting interview prep, it’s important to remember that the “right answer” is not simply a conclusion, but the methodical, the well-structured process used to reach the conclusion. 

To answer a case question correctly, you must:

Step 1: Understand the question you are being asked.

After your interviewer describes the client this case interview will involve and the problem they face, you should repeat this information back to them in your own words. 

This can feel awkward when you practice your first case, but it will help you in the long run.

If you don’t have the client and their problem straight, you could spend a lot of time answering the wrong question. If that happens you will not be moving forward to second round interviews no matter how elegant your analysis is.

Example: Our client is a fast-food retailer that has seen decreasing sales revenue over the past couple of years. They want your help in understanding what they can do to improve sales.

Step 2: Take time to think through all the key aspects of the problem.

Ask for a moment to consider your approach to solving the client’s problem. During this time, write down what you want to learn about the client’s situation before you answer the interview question.

Your approach can lean on business frameworks you’re familiar with during your case interview preparation. 

For instance, in the example of a fast-food chain with declining sales, you should break sales down into price and unit volume to understand whether the client is not selling enough units of their products or whether prices have fallen (or both!)

But you don’t need to use familiar frameworks. In fact, it’s best to develop your own structure for breaking down the problem as it shows you can solve a case without forcing a standard framework on the problem.

For more information on business frameworks, you might want to become familiar with during your case study preparation, see  Case Interview Frameworks .

Step 3: Ask pertinent questions and use information from the interviewer to form hypotheses about the problem and explore potential options.

After you brainstorm key aspects of the case problem and structure your approach to solving it, share your approach with your interviewer.

If the interviewer suggests a place to start your analysis, follow their lead.

Otherwise, suggest the best place to start digging into the case.

Make sure the questions you ask the interviewer touch on all the key aspects of the problem you identified including the client’s internal organization, the market for their product, and their competition.

Step 4: Summarize your case interview conclusion in a persuasive manner. 

Once you’re confident you have enough information to understand the case and what needs to be done to solve the client’s business problem, you’ll conclude the interview with a logical summary outlining the problem, key conclusions you’ve reached, and providing a persuasive recommendation on how you’d help the client resolve it.

Below, we’ll go into more depth on how to address each of these 4 points in a case.

Questions You Should Ask Yourself Before Diving Deeper into Case Interview Preparation

Right now, you may be thinking to yourself that consulting interviews sound impossibly difficult. Or you may think that they sound like interesting business problems that you’d enjoy solving. 

Perhaps you’re not sure.

If you think that answering case interviews is not something that would come naturally to you, don’t worry, you’re not alone! 

Getting good at consulting interviews requires a lot of preparation.

Before you commit to putting in the time required to prepare for the management consulting interview process, you should ask yourself if a career in management consulting is right for you.

Key Questions to Ask Yourself Before Pursuing a Career in Consulting

• Do you enjoy solving the types of business problems asked in case interviews?
• Do you have a background in business principles or are you willing to invest the time it will take to develop one?
• Are you passionate about pursuing consulting as a career?

Management consulting jobs might pay well and provide the opportunity to pursue attractive careers, but if you don’t like solving business problems, you probably won’t like the work you’ll do as a consultant. If you don’t enjoy analyzing business cases, save yourself a lot of preparation time and frustration. 

Focus on career options that better meet your interests.

Or, perhaps solving business problems with smart, driven professionals sounds like it’s your dream job. 

If so, move onto the deeper dive into case interview prep below! 

Case Interview Prep – Diving Deeper

If you’re here, we’re assuming you’re serious about investing time in preparing for a career in management consulting. 

The best way to get smarter about  answering case interview questions is to master this four-part approach.

How to Answer a Consulting Case Interview –  a 4 Part Approach to Practice During Interview Prep

The 4 parts to answering a consulting case interview are:

• Opening  – This is where you make sure you understand the client’s problem.
• Structure  – This is where you brainstorm all factors relevant to the problem and organize them to ensure you address them in a complete and logical manner.
• Analysis  – This is where you gather data to identify which of the factors related to the business case are the most important. You’ll use this data to create a recommendation for your client.
• Conclusion  – Here, you present your recommendation to “the client” (your interviewer), in a well-structured and persuasive manner.

Case Interview Prep Part 1: The Opening

As we saw in the video above, the opening of a case question is a description of a client and the problem they’re facing. Davis repeated back to the interviewer the type of business the client was in and and their business problem.

Remember, this clarification is an important step in the process.

If you did not remember that the client was a top-three beverage producer and answered the question as if the client was a start-up, your answer would ignore the manufacturing and distribution infrastructure the company already had in place to launch its new product.

That would make your answer completely wrong.

During this portion of the interview, you can ask any clarifying questions you need to. If something is not clear—the client’s product or industry, or the problem they want to solve —ask !

Nailing the opening is probably the easiest part of case interview preparation. Get this right, and you’ll start each case off strong.

Case Interview Prep Part 2: Structure

Once Davis clarified the problem, he asked for a moment to prepare her response. In the structure phase of the case interview, there’s silence for several moments.

As with clarifying the question, this can feel awkward.

But asking for this time will show the interviewer that you’re carefully structuring your problem-solving approach.

It will also ensure that you are not quickly addressing a couple of aspects of the business problem but ignoring others, potentially ones that are critical to solving the client’s problem.

Some quick brainstorming is useful here, but also take a step back to maker sure you consider all aspects of the client’s business, its customer demand, and the competition. 

Organize your questions into a comprehensive approach to address all key aspects of the problem.

Mastering the structure phase of the interview is not as easy as the opening, but it’s critical to ensure you have the structured problem-solving approach that will lead you to the right answer to the case.

Focus on this aspect of case interview preparation until you can structure almost every case right.

Case Interview Prep Part 3: Analysis

In the third part of the case study interview, you’ll dig in and analyze the problem.

After Davis outlined his problem-solving approach, the interviewer told him that the client wanted to understand the beverage market and customer preferences to assess the potential success of the product launch.

The interviewer then provided a chart with helpful data.

This part of the interview is important because gives you the data that will help you close down aspects of the case that aren’t at the heart of the problem you need to solve and to better understand key drivers that will point to the solution.

But you’ll also need to do some consulting math .

You should also refer back to the problem-solving structure you laid-out earlier in the interview to make sure your analysis is comprehensive. You don’t want to get lost down one rabbit hole and ignore other important aspects of the problem.

During this portion of the interview, you’ll be assessed on whether you asked relevant questions, have well-reasoned insights into the client problem, and whether you could lead a case like this if you were hired by the firm.

Many consulting candidates find that the analysis phase of the interview is the toughest of the 4 parts.

You need to balance doing consulting math calculations with interpreting data and make sure you cover all aspects of the problem you identified in the structure phase of the case. 

Stick with this aspect of case interview preparation until you’re an expert at it–it will pay off in your interviews. 

Case Interview Prep Part 4: Conclusion

Davis concluded the case with a direct answer to the case study interview question as it was initially asked.

This answer should be both persuasive and logical based on all the information gathered over the course of the interview. Your answer should also include the next steps your client should undertake.

During the conclusion, you’ll be assessed on whether you present a well thought-out solution based on the relevant facts of the case.

Like the opening, mastering the conclusion is not difficult. Take you time to nail this aspect of case interview preparation anyway as leaving your interviewer with a strong impression of your casing capabilities is important.

The Bottom Line for Effective Case Interview Prep

The case study interview is not as complex as it seems if you break it into 4 parts.

Practicing each part of the case on its own will make your consulting interview preparation both more efficient and more effective.

Now that you’re familiar with the 4-part approach to a case interview, the next thing to learn is the 4 different formats case interviews can take.

4 Formats for Case Interviews

There are four formats a consulting case interview can take:

• Candidate-led – This is the most typical case study interview format. A candidate is given an open-ended business problem to solve by an interviewer. The candidate will break down the question into key parts and decide which part to probe first. The interviewer is looking to see that you know how to drive the analysis of a problem. This case format is typically used at firms like Bain, BCG and Oliver Wyman.
• Interviewer-led – In this case interview format, a candidate will still be expected to identify and structure the key elements of  a thorny business issue, and then present them to the interviewer. But after they do, the interviewer will direct them to first address a particular aspect of the case. This interview format is typically used in McKinsey cases.
• Written interview – This is not a common interview format but can be common for particular companies and offices. You will be given a packet of PowerPoint slides and time to review them. During this time, you’ll prepare a presentation using the slides you choose from the ones provided as well as others you create, and you’ll then present it to a panel of interviewers. Written interviews are frequently used by boutique consulting firms and regional offices of larger firms such as Bain’s China offices. For more information, see this article on written case interview.
• Group interview – Multiple candidates are brought in to discuss a case together and then present their solution to an interviewer. The group case is also not a frequently used interview format. For more information, see this article on group case interview.

While the candidate-led consulting interview is the most frequently used format, you’ll probably see more of the interview-led interview format in McKinsey interviews.

You should also be aware of the written and group interview formats so that if you get one during the interview process, you’re not caught by surprise. But don’t spend a lot of time on preparation for that type of interview unless you’re informed you’ll have one.

Congratulations! 

You’ve made it to the end of our crash course on case interview prep. By reading this article, you now have a strong understanding of:

• What a consulting case interview is,
• How to answer case studies using the 4-part approach, and
• What the 4 different formats for case interviews are.

You are well on your way toward preparing for your first case interview and entering the exciting field of management consulting. 

Still have questions?

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

Also, we have tons of other resources to ensure you get an offer from a top management consulting firm. Check out these topics:

• Case Interview Workshop Video,
• Case Interview Examples , and
• Case Interview Practice .

Help with Case Prep

Thanks for turning to My Consulting Offer for advice on case 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 Brenda was able to get a BCG offer when she only had 1 week to prepare…

8 thoughts on “A Comprehensive Guide to Case Interview Prep [updated 2024]”

In the math calculations of the analysis portion, why was it that there were 8 cans per gallon? Where did that number come from?

Hey, Tonia! Thanks for your question.

In the case, we’re given that the size of the market for US sports drinks is 8 billion gallons. Electrolyte drinks are 5% of this total or .4 billion gallons which equals 400 million gallons.

We’re also given that the product size for drinks in this market are 16 ounces. And in our breakeven analysis, we find out we need to sell 400 million bottles (or cans) to break even. We need to do a conversion to compare our breakeven point of 400 million bottles to the 400 million gallon market size to see what market share we would have to achieve to break even.

Conversion: 1 US gallon = 128 ounces. 128 ounces/ gallon divided by 16 ounces/ bottle = 8. We can fill 8 bottles for each gallon of electrolyte drink we produce. So 1 gallon is 8 bottles (or cans) manufactured by our client.

We divide the 400 million bottle (or can) breakeven point by 8 to get to 50 million gallons. We compare the 50 million gallon breakeven point to the 400 million gallon market size to see that we need to capture 12.5% market share.

Note: In answering this question, I noticed that a UK gallon = 160 ounces, so if you are using UK gallons you will get a different answer!

I hope that helps! Sorry about the confusion between US ounces/gallon and UK ounces/gallon!

Hi, what resources are you typically allowed to use during (virtual) case interviews? Such as a pen, paper, calculator etc.

You’re typically allowed a pen and paper in a virtual case interview but NOT a calculator. Part of what your interviewer is testing for is your quantitative skills, so they want to see that you can do calculations in your head or on paper. See our article on virtual case interviews , for more info. Also, we have an article on practicing your case interview math .

Best of luck!

Can you please explain the ROI formula? I do not understand why (2m-8m)/8m = 25%. That calculation gets a result of -75%

Shouldn’t the formula just be (net profit)/(cost of investment)?

George, thanks for pointing this out! The formula was incorrect, and should be Profit/cost of investment. The correct answer is 25%.

All the best, MCO

thanks for information

great information

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• Knowledge Base

Methodology

• 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

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• Case Studies 101

• January 22, 2016
• Content Marketing

Your customers are your greatest asset – their stories are the most powerful marketing tool at your disposal. When they tell the world how they benefit from your products and services, people listen. Case studies can intrigue, inform, inspire, and ultimately convert.

But what goes into a case study? How do you find the right customer? What’s the best format? Here are some case study basics to get you started.

Find the right customer

Everybody loves a good story. When you’re looking for a customer to profile, seek out intriguing stories of transformation and success. If possible, find customers that were able to change the way they do business for the better, or customers that significantly improved their lives using your product or service.

Stories should be relatable to a target audience. Find customers in your largest or most successful verticals. If you can, pick people with large social networks or influencers that’ll catch some attention. Smaller or unknown customers can have intriguing stories, but big names will draw more readers.

Should you offer a discount to customers who agree to do a case study?

That’s up to you. In most cases it’s good business to give customers some swag (branded gifts from your company) when the case study is completed. Other discounts or deals are at your discretion.

Pick your format

Long-form written, short-form or video? There are many ways to tell a great customer story and each has its own advantages and disadvantages. Think about your audience and what they’d like. If you’re selling to busy entrepreneurs, then short-form written pieces or quick video clips may be best. If your sales process is long and involved, an information-rich, long-form written case study may be just what you need.

Also think about your own in-house expertise and the cost of production. Video case studies can cost thousands to produce while a written case study can be penned for much less. If you‘ve got a writer in house, good. If not, hire one. A poorly written (or poorly produced) case study takes as much time to construct as a good one, but won’t garner the same results. And – a poor case study is a waste of your customer’s good will.

Here are a few common formats:

Short-form written —A quick case study that concisely tells your customer’s story and lists concrete results. Typically published online as a blog post or within a “customers” section on your company website.

Long-form written —A longer, detail-rich case study that includes multiple sources, quotes, and details about business metrics. Typically published as a printable PDF and made available via a download button on your site or distributed among your sales team as collateral.

Short-form video —Short (1-minute or less) video of your customer telling their story and describing their success. Short videos can be as simple as your customer addressing the camera in a well-lit room, or footage of your customer at work with a clear voiceover.

Long-form video —A longer (5-minutes or more) case study that includes footage of your customers at work, multiple subjects and even motion graphics.

Ask the right questions

All case studies should cover the basics:

• Who your customer is,
• What they do,
• How they do it, and
• How they’ve been successful using your product or service.

When formulating your questions, remember the basics of journalism: Who, what, when, where and why. Also be sure to ask for concrete results and metrics, such as:

• What giant painful problem did they solve?
• How much time did your customer save?
• How much money?
• What were they able to accomplish using your product or service?
• What did they accomplish that could not have been done any other way?
• What are the before-and-after numbers?

Get lots of details and don’t be afraid to ask your questions more than once to get clear answers. Ask permission to record the interview, so you can focus on having a great conversation – not on taking good notes.  

Tell the story

Case study stories can have many twists and turns, but all are told in three main acts:

Challenge —What challenges were your customer facing? How did those challenges affect them? What did they try to do to overcome them?

Solution —Your product or service. Tell the reader/watcher how your product/service solved the problems outlined above.

Results —The concrete business (or personal) results of using your product or service. Details and business metrics should be included here.

Get permission

Remember to get permission from your customers to publish. Find a standard legal release form that gives you permission to publish and distribute your customer’s story how you see fit. It may sound like a lot to ask from your customer, but remember that you’re offering free press for them and their business.  

Promote it  

You can have the greatest case studies ever written, but they won’t help your business if nobody reads them. Promotion is key to any successful case study strategy. Promote your stories via social media, in customer email newsletters, at business conferences – any way you can. Let your sales people know about them, especially if they’re selling into the same vertical.

It helps to have influential customers who are able and willing to spread the word for you. If your case study subject has a large following, ask them to Tweet a link to their story to all their friends and colleagues.

You can also promote your case studies through your PR contacts. Send your case study to a list of industry publications that may be interested. They could request an interview with your customer, to tell the story their own way, or they might publish it just as you send it to them. Even if they don’t republish your story, those trade industry editors may share the stories in their own networks.

Reuse, recycle

Once you’ve published and promoted your case study, take the time to reuse it.

• Break it up into smaller sections to be used on other parts of your website.
• Pull quotes for one-line testimonials; use them on your website and in eBooks, or in presentations.
• Condense it to a one-page story that can be distributed at trade shows or at sales meetings.

Get creative. Your customers’ stories can be told over and over again and used in multiple circumstances.

You’ve put a lot of time, energy, effort and money into telling their stories. Make sure they’re effective marketing materials for your business.

It also helps to make sure you are using this materials in the correct stage of your content plan. Check out Act-On’s 4 Step Content Plan Guide , to see where you can effectively use case studies in your content strategy.

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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."

• B2B Marketing

Case Study Writing 101: Everything You Need to Write Your First Case Study

Do you want to get more business? Case studies are a great way to do that. In this article, we will go through the case study writing process, from start to finish.

We’ll discuss how to find a company that’s right for you, what information you need for the case study, and what kind of content it should include. Case studies can be an excellent addition to any marketing strategy!

The point of content marketing is to establish your brand/business as a trusted authority in your industry. Customers want to see a real-world demonstration of a company’s product or service and how your solutions can address their needs. And the best way to show this is through a client case study.

Identify a Compelling Angle for Your Case Study

7. propose next step – add a call to action, should you use a template for case study writing.

This post may contain affiliate links, meaning I receive a small commission at no cost to you when you make a purchase. This helps me pay to keep this site going and to bring all these free resources to you. As an Amazon Associate, I earn from qualifying purchases.

What Is a Case Study?

Case studies are detailed stories about a customer overcoming their problem with your company’s products. By the end of a case study, it’s important for the reader to visualize themselves in that position.

Good case studies all have a beginning, middle, and end. They also have an active protagonist – your customer – who overcomes a problem and achieves their goal.

Business case studies allow you to describe the results of implementing your services from the customer’s perspective. Your case study should highlight how your product or service is the best solution for specific customer problems.

Your customer case study can be presented in different formats – article/blog post, video case study, social media post, email, or even podcast audio.

For the purpose of this article, we’ll focus on the blog post format and how to create a compelling case study that will get customers wanting to know more about your business and solution.

Related:   How to Create a Case Study That Converts: The Ultimate Guide for Businesses

Why Create Marketing Case Studies?

Marketers often prioritize other marketing content formats over marketing case studies.

In a recent report , B2B Marketing asked a cohort of marketers how they felt about various content formats, including case studies. 67% of marketers surveyed said case studies were ‘very effective’.

Customer case studies are fantastic tools for marketing because they can be used to highlight customer success. When you share customer stories, it’s easy for potential customers to connect with the customer and feel hopeful that they too will have a successful experience.

Case studies also provide an opportunity to demonstrate your company’s expertise in customer service or product development by highlighting specific results achieved through implementing certain strategies or approaches.

How Do You Write a Case Study?

[source:   Freepik ]

Case studies are about how a particular consumer/client used the goods or services to solve their problem. A good case study has a beginning, middle, and end, just like a story.

Always start with a case study strategy

Before you begin writing a case study, ask yourself: where do case studies fit within your broader content and marketing strategy ? This is critical to identify upfront so you can plan your case study appropriately.

The following questions are important to ask when considering a case study strategy:

• What customer success challenges does your business face?
• What customer pain points do we want to address through the use of content and marketing efforts?
• How will this help our customers achieve their goals faster or better than they would without our product/service?

Is there an opportunity for customer testimonials, customer reviews, customer feedback as part of the design process with customer success team input on what is most helpful information in each stage of product adoption (e.g., early adopter feedback)?

Do case studies offer value outside of just generating leads by driving awareness about products that may drive viral reach, social media, or other customer-generated customer referrals?

What’s the intrinsic value of case studies in terms of customer research, customer engagement, loyalty, and also retention?

Don’t have a strategy yet for using case studies to market your business? Watch our free 5-min training and download our PDF worksheet .

The more engaging your case study is, the better. It is important to choose an interesting customer for the next case study. Have any of your customers used the services you offer on a particularly difficult or unusual problem?

Think outside the box when searching for someone to serve as the basis for a case study. The more engaging your story, the better it is to be heard.

This is why it’s important to consider where your case study will fit within your customer journey and have a strategy for using case studies to market your business.

Once you’ve worked out which angles will speak to prospective clients, and you’ve identified which client(s) would be best suited to profile, it’s time to plan your case study blog post.

How to write a case study in 7 steps

Here at Simple Creative Marketing, we developed the “7P Framework” for writing compelling case studies.

Here’s a video walking through each of the 7 P’s of our case study framework.

Prefer to read? Not a problem. Let’s break down what each “P” stands for. While case studies can be shaped differently,  the following components are a must in any client success story.

1. Punchy Headline – Case study title

The title creates the first impression of your study, and it should be able to reflect the accomplishments or use case of your product effectively. You can even use the client/consumer’s to make it more authentic.

Here are some examples of case study titles that we came up with for our clients:

• How Ally Nitschke Quit Her Day Job And Went Full-Time On Her Coaching Business In Just Five Months

Reducing Bento’s Bookkeeping Time to 5 Minutes Per Month

• How eCommerce Growth agency hit growth targets consistently for 3 months straight and achieved a 76.57% profit margin

2. Profile – About the Client’s Company

The next step in your case study is to turn on the lights and set the stage. Since the story is not about you but the client, a brief introduction to your client’s world helps the audience connect and identify your target audience and relate with the challenges accordingly.

This is also a great opportunity for you to let your readers know what type of clients you typically work with. For instance by stating clearly that the client being profiled is a 6-figure course creator that immediately lets readers know that’s who you serve.

3. Problem Statement – Describe The Challenges

Moving forward with the case study story, describe each problem in a few paragraphs and state the challenges faced by the client before they opted for your product/service.

Keep in mind not to deviate from the subject of your study. When talking about the challenges that your client faced it’s important to provide the context in the form of statistics, stories, and quotes.

You can consider this the “before” snapshot of what was happening before the client discovered your product or service.

This is the background context that really makes the final case study valuable to a prospective client during their research phase i.e. when they are evaluating whether or not to engage your company for a problem that they’re looking to solve.

For example, in a case study that we did for Bean Ninjas client Bento , we painted the picture of how the founder was struggling with poor quality work of their previous bookkeeping service.

The best way to identify the actual challenges a client experienced is to interview them.

We like using Zoom because it’s a great way for clients to speak directly with our team members, so they can be much more thorough in describing what they experienced. We’ve also found video or voice interviews to be far more effective than email interviews as we can ask for clarification and go much deeper during the calls.

These calls also double as customer research calls as often clients will reveal valuable insights that can go straight to sales and marketing teams.

4. Process – Share the Solutions your company provides

After introducing the customer’s problems in your case study it’s time to define the measures you took to resolve the issues.

This is your company’s time to shine!

This is the part where you explain and demonstrate  ‘how you made their journey simple’. What was the methodology or process that you used to provide an effective and remarkable solution for the client?

We recommend you don’t hold back and share enough of your process to provide evidence that you have a repeatable system for producing results and solving your customer’s challenge.

You can always slide in some of your strategies that benefited your client. It enables customers to gain a better understanding of your client’s experience as well as the impact of your work.

One of the best ways to go about it is to show screenshots of the relevant analytics and marketing dashboards that back up your claims of success. Visuals like this can really add to the story.

5. Payoff – Describe the final Outcome

The result is the end goal, or even the champion, of your case study, and it should be given due importance.

Show how your solutions led your client/customer to achieve their targeted goals. The outcome should speak of the benefits your client has received after hiring you.

Example: As a marketing strategist, you can talk about the improved traffic statistics from before you started to how they improved after implementing the customized solutions.

6. Praise – Client Testimonial

Focus on what your happy client has to say.

Your case study isn’t complete without what your customer has to say about your services.

Everyone has their way of storytelling, and who can be the better narrator than your client themself?

Adding client quotes lends credibility to your case studies.

Adding a call to action at the end of your case study article can help encourage your readers to take the desired action.

You could include a call-to-action button in every case study that includes a form for people to sign up or subscribe, create an account, request a demo, book a call, buy something, etc.

How to write a case study specifically for marketing

As mentioned earlier, case studies have become one of the most effective content strategies to boost leads and sales for business owners. However, only a few businesses understand how to go about their case studies effectively.

There are   many ways to create a marketing case study , but you should always keep an eye on these markers:

1. Highlight the Key Takeaway

You should describe the key takeaways and a summary of the outcome when writing a case study. Use engaging language for summarising this information in a single sentence. You could also include this part as the header of the case study.

This is where you get more particular about the subject.

2. Be Realistic About the Case Study’s Objectives

Provide prospective customers with a valuable, beneficial resource that’s also fair.

Depending upon the type of marketing case study you want to create, keeping honest and achievable goals is necessary. It maintains fair competition and promises loyalty to your customers.

3. Identify a Compelling Angle for Your Case Study

What you do is unique, so should be your content. A case study can be an excellent   lead magnet — all it takes taking some time out to chat with your client.

Collect all the information and get creative with it – but remain truthful. Understand what a case study is and what it isn’t. It’s not a sales pitch. It is a success story.

Example: What are the most popular ways that your goods or services are used? Are your services being used by any of your clients to address complicated or unusual problems?

Using a template is an excellent way to go about a case study. It also gives a structure to your inputs.

Also, case study templates easily summarise details and can be used as visual prompts to help the reader skim through it and grasp the relevant information as needed.

Templates also add uniformity to the content of your case study and help keep a check on the length, data points, information to be included. As a result, you don’t miss out on anything important in your case studies, and your readers get a complete package.

Want our case study process and email templates in free PDF download?  Download our Winning Case Studies guide .

Case study writing tips

• Tell a success story – Your case study should be able to tell the story of success. A story that the audience can relate to and would want you to replicate for them.
• One Challenge at a time – You should mention all the challenges without confusing the readers. Talk about each challenge one by one and bring out the solutions accordingly.
• Promise Results – Your audience seeks trust and loyalty along with an effective marketing strategy. Your business case study must provide promising examples of how you helped your client overcome the challenges and excel in the market.
• Don’t forget keywords – Keywords are the real players in the world of content marketing. No matter what type of marketing you do, keywords matter. Keywords determine whether people looking for businesses online can find your YouTube videos, read your posts, or visit your website. While using keywords might sound forced in your case studies, using related, long-tail keywords does help. Also, people tend to search a lot for ‘case study,’ so ensure you include that in your title and content.
• For instance, a title can be ‘Case Study: How XYZ scaled their organic content to 1 million users in a year.’ This would help your content rank for search queries such as ‘content marketing case study’, or ‘organic traffic case study’, etc.

You’re too busy to interview clients and write your own stories. Are case study writing services worth it?

Today, business case study writing services are one of the most in-demand services. They provide quality content writing & publishing for time-poor business owners.

A service that provides well-written case studies can help set you apart in a highly competitive market and show potential clients how you are different from the competition.

More significantly, they free up more time, from research to writing to optimising – all of it so you can focus on sales, customer support, or building your team.

Interested in hiring us to write case studies for your company? Check out our done-for-you packages .

Where to from here?

Hopefully, you now have a better idea of what to include in your written case study and how it can help grow your business.

A well-written case study blog will help prospective customers to understand your process and value proposition so that they can make their decision about working with you.

A well-written case study is a valuable tool in your content marketing strategy .

A compelling case study will include the following elements:

• A persuasive and compelling case study of a successful company
• The story behind the success, including why this particular company was successful
• How this case study is relevant to your business and what you can learn from it
• Details of the methods used in building a successful campaign

(Featured image photo by Aaron Burden on Unsplash )

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S T R E E T OF W A L L S

Consulting case study types.

In the previous chapter , we described some well-known frameworks for evaluating companies and industries—frameworks that are important in Management Consulting Case Studies, and can broadly be applied to many different types of Consulting Business Situation Cases . We also described a number of analytical techniques that frequently come up in Business Situation Cases. In this chapter we’ll take a deeper look into common types of Business Situation Cases, evaluating the core concepts in them and the methodologies for approaching them (using ideas from the frameworks from the previous chapter to help us organize our approach, and the analytical techniques from the previous chapter to help us drive to an answer).

Each of these Case Study categories occurs very frequently in Management Consulting Case Study interviews, so you should be familiar with the basic issues that tend to occur over and over when they come up. In short, you should practice each of these Case types multiple times until you feel confident that you could a new Case of this type in a live interview.

Here are the eight primary types of Business Situation Case Studies as we see them:

Profitability Optimization

Pricing optimization, industry landscape & competitor dynamics, new product or project, growth plan/strategy, market entry or expansion, merger/acquisition/joint venture, start-up/early-stage venture.

Note that in most situations, a given Case will lend itself to several different categories. In the discussion below, we will attempt to enumerate the different combinations of Case Study situations that tend to occur together in the same Case.

In both good and bad economies, companies continually seek to optimize their Revenue model and their Cost structure.  The goal, ultimately, is for the company to use Invested Capital as efficiently as possible.

The two core components of a Profitability Optimization case are a Cost Assessment and a Revenue Assessment. Sometimes, only one of the two will be required for the Case. Note that Profitability Optimization situations often arise as part of a Case Study of another type—for example, in a Case Study involving pressures from competitors or substitute products, you may need to assess and optimize the Company’s Cost structure to determine it is competitive. Or, it could be that the case revolves around the Company’s Cost structure optimization, the job candidate may need to perform some qualitative analysis of the competitor or supplier landscape.  As you can see, a variation on Profitability Optimization can arise as part of many different Business Situation Cases.

Whenever Profitability Optimization is a key issue, the interviewer will usually highlight that profitability has been declining (or is projected to decline) and the Case will involve identifying the sources of the decline and potentially how to reverse or obviate it.

Example Case Situations

• The client is a low-cost airline based in Singapore, serving 24 destinations in the Southeast Asian market.  The Airline’s profitability was strong until 2010 and has since seen a declining trend and is now only just barely profitable.  The CEO would like you to determine what is causing the profitability decline and suggest a strategy to reverse this trend.
• The client is a market-leading, niche ski equipment manufacturer based in Colorado. Profitability has remained steady but the CEO has noticed from reading industry annual reports that two publicly-listed competing ski equipment manufacturers have meaningfully higher profit margins and have also been increasing their top line (Revenue). The CEO would like to understand the drivers of these differences.

Note that both of these Cases would involve some degree of Market Landscape/Competitor Dynamics analysis in addition to Profitability Optimization.

Core Concepts and Structure

Scenario: The client has determined that profitability margins have been (or are projected to be declining) and has requested that you analyze the causes of this decline and put forth recommendations to reverse it.

Expense Analysis

• Gather current expense breakdown and historical expense breakdown (this question alone will only help to get you towards the key focus area, as the interviewer will only have so much information).
• Identify the “bang” areas (this is Consultant lingo for expense areas that account for a large percent of the total).
• Analyze the key Fixed and Variable expense components and identify any meaningful changes in expense areas.
• Fixed Expenses might include overhead, fixed equipment expenses or depreciation, distribution, rent, and/or interest
• Variable Expenses might include raw materials, labor, sales, and/or distribution costs
• Request information on competitor Cost structures from the interviewer to see where the company’s Cost structure may be inefficient.
• Assess whether any expense areas could be cut with minimal or no impact on sales.

Revenue/Sales Analysis

• Gather as detailed of information as possible on current sales volumes and pricing and historical volumes and pricing. Use this information to determine growth rates.
• Identify the “bang” areas (consultant lingo for revenue streams that account for a large percent of the total, and/or a large percentage of the growth in the total).
• Analyze the key product areas and identify any meaningful changes in volumes and prices.
• Request information on competitor Revenue models (volume and pricing) from the interviewer to see where the company is potentially missing profitable business activity.
• Assess whether any changes could be made to improve overall Revenue or Revenue per unit sold.
• Pricing change suggestions/analysis (e.g., factors behind price elasticity; see Pricing Optimization Case descriptions below)
• Volume assessment and ways to improve volumes
• Identify changing customer desires/demands and respond accordingly.
• Invest in and/or reformulate marketing strategy.
• Expand distribution channels.
• Expand sales force or customer service.
• Expand production capacity.
• Expand product/service portfolio (see New Product or Project, Growth Plan/Strategy, and Market Entry or Expansion Case descriptions below).
• Make an acquisition or enter into a joint venture.
• Assess which products/divisions might have the largest growth opportunities and allocate investments accordingly.
• What would customers be willing to pay if Facebook shifted to a subscription model (we heard that this Case was conducted by the San Francisco office of a major Consulting firm recently, though the client being analyzed was not Facebook)?
• A long-stay hotel chain would like to maximize profitability by determining the optimal pricing for different lengths of stays and types of rooms.
• An online movie-streaming company is seeking to select the optimal price mix for its product offering in order to maximize profitability.

Like Profitability Optimization, this is a type of Case Study in which many of the other Case Study types might be relevant (for example, Industry Landscape, Competitor Dynamics, Growth Plan/Strategy, etc.)

Scenario: The client is deciding how to set prices so as to maximize profitability.

• Competitor/substitute pricing is the key element here—particularly if there is no major differentiation or benefit to the client’s products relative to substitutes.
• Price of substitute products/services
• Is the product sufficiently different to justify a higher price? (This points to the threat of substitutes.)
• Customer loyalty/lock-in (as an example: many lower-priced colas have failed to successfully compete against Coca-Cola due to consumer brand loyalty)
• Remember to ask about: Price Elasticity, Price Elasticity, Price Elasticity!
• Interviewers will often give you sufficient information to assess the impact on volume with a price adjustment and expect you to make the calculation.
• The higher the absolute value of Demand Elasticity (i.e., the more volume decreases when prices increase), the more likely it is that a price reduction would be beneficial. Likewise, the lower the absolute value of Demand Elasticity (i.e., volume barely decreases when prices increase), the more likely it is that a price increase would be beneficial.
• Expense-driven pricing analysis
• What is the fully-loaded cost for the client to produce the product or offer the service? How does this compare to the price?
• How does client’s fully-loaded cost compare with competitor pricing?
• Note: In situations in which the client’s cost is higher than the competitor price , it is usually a good recommendation to exit this product or service unless it can be demonstrated that:
• There is a clear path to reduce client production costs, or
• The competitor price is temporary and unsustainable.
• Customer-driven pricing analysis
• How much would customers be willing to pay for this product?  (You are not expected to be able to answer such questions, but ideas on how you might approach such questions are important—for example, running a survey, looking at applicable Case examples, looking at pricing structures for comparable products, etc.)
• What is the current state of demand and supply for the product or service (for example: would an increase in the number of orange juice manufacturers and orange tree groves be putting significant pressure on orange juice prices)?
• What are the alternatives for the customer and the relevant prices? I.e., is the threat of substitutes substantial or can it be mitigated?
• A client is a large nutrition, health & wellness Company and is considering divesting its non-core infant foods subsidiary in order to free up capital to invest in higher growing industries.  The CEO would like you to assess the industry landscape of the infant foods business in Western Europe.
• A client is a global financial services firm that is considering allocating more resources to the facilitation of electronic fund transfers globally.  The CEO wants to better understand the market landscape and develop a strategic plan to increase the Company’s share of the market.

Scenario: The client wants you to understand and assess an industry (this often overlaps with Market Entry, New Product or Project, or Growth Plan/Strategy Cases, described in more detail below).  Usually, the goal is to assess the characteristics of an industry and to determine whether or not it is an attractive industry to enter, to ramp up, or potentially to exit.

• Market/Industry Landscape
• Current market size
• Projected market growth
• Customer mix (a.k.a. Customer Segmentation )
• Industry-wide profitability
• Mergers & Acquisitions activity in the industry
• Competitive Advantage/ Barriers to Entry
• Supply chain: who are the key suppliers to the industry? (Assess this only if relevant)
• Brand loyalty
• Technology, regulatory issues, or other key topics relevant to the market
• Competitor Dynamics
• Key competitors in the market and their strategies
• Current market shares and shares over time
• Used to derive Market Concentration (i.e., what portion of the market is served by the top 3/5/10 companies in the market?)
• Product/service differences among competitors
• Any recent moves/threats by a key player to the market or a new entrant?
• A client is a durable consumer equipment manufacturer attempting to develop a “green” washing machine that employs special technology, resulting in 60% less water use and cleaning 10% more effectively than standard washing machines.  The CEO would like help to determine the product’s market potential and the strategy to bring it to market.
• A client is a pharmaceutical company that is engaged in Research & Development on a drug that would both lower cholesterol and reduce obesity (i.e., help in significant weight loss).  The CEO would like to know whether this drug would gain traction, and if so, what is the potential market size and the optimal price for such a drug.

Once again, this is a type of Case Study where many of the other Case categories might be relevant (Industry Landscape, Competitor Dynamics, Growth Plan/Strategy, Market Entry or Expansion, etc.). Note that such cases could also involve decisions such as the purchase of a major information technology system (in this case, many of the acquisition concepts could be applied).  It could also involve the assessment of a new investment project, such as the development of a new major manufacturing or sales facility.

Scenario: The client is developing a new product and would like your assessment of the feasibility of this product. Would the product be profitable and beneficial in the marketplace?

• Product Snapshot (Less relevant for New Project cases)
• Will the client have any competitive advantage that prevents competitor entry (such as a patent or a way to lock in customers) once the client has unveiled the new product?
• How is the client’s product different from and/or better than competing products? What are the substitute products?
• Pros and cons of client product (for example, environmental and social considerations)
• Is there a risk that that the new product will cannibalize another of the client’s products?
• Customer Strategy (Less relevant for New Project cases)
• What is the appropriate customer mix to target? How does this affect profitability and marketing strategy?
• What are the distribution channels? Can the client use its existing distribution channels?
• What is the methodology/strategy to attract customers to try the product and potentially switch?
• What is the methodology/strategy to retain newly acquired customers?
• Market Entry Strategy (Mostly less relevant for New Project cases)
• Competitive advantages/ Barriers to Entry
• Approach to entering (Acquisition or enter organically?)
• Time/investment required to enter market
• Product pricing strategy
• Technology, regulatory or other risks to entering this market
• Market Landscape
• Future market growth
• Current customer and product mix
• Key competitors in the market, their strategy, Market Shares (current and historically over time), product differences and potential response to client’s actions
• Product/Project Funding
• Does the projected profit justify the required the Research and Development expenditure, the initial capital requirements, and any ongoing investment needs?
• What is the Opportunity Cost of the required funding?
• What is the required financing and how is the Research & Development being financed?
• Will the project result in Economies of Scale (i.e., cost reductions for increased production) elsewhere in the company? (Less relevant for New Product cases)
• The client is a German carpet manufacturer that has seen sales decline dramatically in its North American operation.  The client would like you to help it develop a strategic plan for sales growth in North America and to determine the root causes of the sales decline.
• The client is a surf apparel Company that has three stores on the West Coast of the United States and is looking to grow its store base significantly across the continent.  The CEO would like help designing a store rollout strategy across North America.

Yet again, this is a type of Case Study where many of the other Case categories might be relevant (Industry Landscape, Competitor Dynamics, New Product or Project, Market Entry or Expansion, etc.)

Scenario: The client is seeking to grow its business, whether it involves growing a certain product’s sales, growing in a certain geographical region, increasing total sales, etc.

• Ways to increase number of units sold
• Optimize prices (See description of Pricing Optimization above)
• Increase share of wallet (fancy term used by Consultants to mean that the client captures more of a typical customer’s spending in a particular area than it previously did; analogous to Market Share )
• Determine which products/divisions have the largest growth opportunities and allocate investments accordingly
• Identify changing customer preferences/demands and respond accordingly
• Invest in and/or reformulate marketing strategy
• Investigate means and requirements to expand distribution channels
• Investigate means and requirements to expand capacity
• Investigate means and requirements to expand sales force / customer service
• Investigate means and requirements to expand product/service portfolio (see description of Market Entry or Expansion below)
• Make an acquisition or enter into a joint venture (see description of Merger/Acquisition/Joint Venture below)
• Always drive towards Profitable Growth : in any growth case, be sure to discuss this issue. Growing Revenue in and of itself is usually not a good outcome if the Costs of the growth exceed the Revenue, or if there were other growth opportunities that would have yielded a higher return on investment but are mutually exclusive (see Opportunity Cost).
• The client is an online yoga apparel retailer looking to enter the European market. The CEO would like help in formulating an entry strategy.
• A high-end watch manufacturer has developed a high quality watch called the “outdoors” watch in order to attract the wealthy, younger audience.  The CEO would like to develop a strategy to attract this customer segment.

This category of Case Study frequently overlaps with several other Case categories (Industry Landscape, Competitor Dynamics, New Product or Project, Growth Plan/Strategy, etc.)

Scenario: A client is seeking to expand or enter into a new market, whether it be a new geographical region or an additional customer segment.

• Competitive advantage/ Barriers to Entry
• Entry Strategy
• Approach to entering (acquisition or enter organically?)
• Customer mix/segmentation
• Your client is a European online white goods retailer that is considering acquiring a North American online furniture retailer.
• Your client is a U.S. specialty chemical producer that is considering acquiring a regional specialty chemical producer in Indonesia.

As you might expect by now, this is a type of case where many of the other case segments are relevant. In particular, Merger/Acquisition/JV activity often represents one method of implementing a Growth Plan/Strategy, a New Product or Project, or a Market Entry or Expansion.

Scenario: The client is considering either acquiring a company or entering into a Joint Venture, driven by many potential factors such as wanting to increase market share, widen product portfolio, take out a potential competitive threat, etc.

Important: For this Case type, you should ask questions as to why the Company is contemplating such an action . The responses to these questions can help steer you to the right analysis, as the responses will often indicate what the key considerations behind the acquisition/JV are from the client’s perspective. Thus you should perform a standard Merger/Acquisition/JV analysis as outlined below, but then generally pivot to the right framework for analyzing the business scenario from the aforementioned categories, depending on the situation.

• Evaluate price to acquire (use back-of-the-envelope Valuation techniques to consider whether the deal is reasonably priced, such as those based on Comparable Company Analysis or Precedent Transaction Analysis )
• Market position
• Customer Concentration and customer certainty
• Supplier relationships and supplier certainty
• Barriers to Entry
• Reputation and brand loyalty
• Product/regulatory/technology risks
• Pay-Back Period / Net Present Value / Internal Rate of Return based on current operations and growth estimates
• Add in Cost or Revenue improvements from Synergies (see below)
• Subtract out Integration and Restructuring expenses (also determine whether the project is feasible)
• Compare with similar projections if the Company were to endeavor to grow organically (required capital expenditures, cost of marketing strategy, etc.)
• Ability to combine or leverage joint distribution channels across products produced by acquirer or target
• Value of expending geographic/market reach
• Cost synergies (such as spreading overhead costs across a larger combined business or combining redundant IT systems)
• Strategic fit
• Cultural challenges
• Competitor response
• Plan to exit (if relevant—note that this will always be relevant for Private Equity firms)
• Plan to restructure the organization, if any, and how/why

While consulting firms rarely work for Start-up companies due to the high fees typically charged, there are increasingly Case Study questions that discuss start-ups. Some Consulting firms have even begun the practice of working for Start-up companies and receiving equity compensation from the Start-up in exchange for reduced cash Consulting fees.

Importantly, this topic is in many ways covered when thinking about a company entering a new market or developing a new product, although there are usually some additional issues to consider for a Start-up company. (Most of these additional issues fall into the “Business Plan” category for a Start-up company.) Additionally, there is generally significant overlap with the industry landscape section.

• Two real estate entrepreneurs are contemplating setting up a co-working space in downtown Chicago to attract the increasing number of young IT entrepreneurs in the area.  Discuss the key considerations for a business plan for such a venture.
• Siggi, a student from Iceland at Stanford University, has determined that there is an enormous opportunity for Icelandic-style yogurt in the North American market. He is in the process of securing funding to produce the yogurt on a farm in Oregon and would like input regarding the key considerations for the yogurt to be a success.

Situation: A potential client has launched a new company to develop a new product or technology that is expected to have positive yet disruptive consequences for a particular market or industry. The client would like your advice regarding specific issues in the company development or product rollout, and any thoughts regarding optimal company strategy.

• Competitive advantage/ Barriers to Entry (with a Start-up, this is a crucial piece of the analysis —can the Start-up enter the market successfully? Will the Start-up will have some sort of competitive advantage, whether it be proprietary technology or access to particular distribution channels?)
• Current market size (if the product a new concept, then you would typically be asked to assess the industry of a substitute product or service, or use relevant comparable products or services to estimate the potential market size for the new concept)
• Key competitors in the market, their strategy, current market shares and shares over time, product differences and potential response to entry
• Likely customers and customer mix (a.k.a. Customer Segmentation )
• Industry-wide profitability (to the extent applicable)
• Technology, regulatory issues, or other key topics relevant to the product or market
• Business Plan (the interviewer might ask you to compile a very simple business plan, after he or she gives you some information; key components are given here)
• Product/Service
• What is the product/service? What are pros and cons of this product/service? How does this compare to existing products on the market?
• What will be the competitive advantage and/or barriers to entry for a product of this type?
• Customers and Distribution
• Who are the target customers?
• What are the core distribution channels?
• What is the marketing plan?
• Financing/Profitability
• What are the initial funding requirements prior to cash flow Break-Even? How does this compare with expected future profitability?
• What are the projected Revenue and Costs for the next three years?
• Management and Oversight
• Management: experience and abilities
• Preliminary Investors: reputation, expertise, and ability to add legitimacy to the new enterprise (and potentially invest more in the company)
• Key Directors and Advisors

Being able to discuss the core aspects of analyzing a Start-up company highlights your ability to quickly answer questions about a new project or idea that may be thrown at you when you are with clients.

Additional Resources

There are a number of guides published and online that attempt to discuss different types of Consulting Case Study questions in a comprehensive and informative way. Our feeling is that most of them are not particularly helpful or are too expensive. There are two, however, that we have found to add quite of a bit of value as an “add-on” to the discussion above, and are therefore worth checking out. Please comment on this page or email us directly if you have a suggestion for an additional resource:

• INSEAD Consulting Club Handbook (see pp. 47-53 for discussion of different Case Study Types)
• Crack the Case System by David Ohrvall

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Case Study: CRISPR 101 – a novel online learning course harnessing innovative ways to teach a complex biomolecular technology

1 Walter and Eliza Hall Institute of Medical Research, WEHI, Parkville, VIC, Australia

2 Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia

3 School of Dentistry and Medical Sciences, Charles Sturt University, Wagga Wagga, NSW, Australia

Nicki Cranna

Marco j. herold, keely bumsted o’brien.

Complex biomolecular technologies revolutionise scientific research. Fully embedding scientific advances in the community requires innovative ways to educate learners on the molecular foundations upon which these technologies are based. In this case study, we present the conception and design of Walter and Eliza Hall Institute of Medical Research (WEHI’s) inaugural wholly online learning course focussed on explaining the revolutionary genome-editing technology, clustered regulatory interspaced palindromic repeats (CRISPR). Utilising WEHI’s strength in bringing science educators and world-leading CRISPR scientists together, we designed a multimodal online resource that introduces learners, without an extensive background in either science or genome editing, to the fundamental concepts of CRISPR technology. Using the online course creation tool, Articulate 360, we guided learners through three modules containing targeted lessons designed to focus on specific learning outcomes. Integrated videos, research articles, interviews, and other resources, allowed for self-paced learning that met various learning style needs. The extensive resources provided opportunities to delve deeper into the content for advanced learners. The effectiveness of the course, evaluated with survey responses collected upon completion of the course, highlighted the ease of use and functionality of the course, and an increased understanding of CRISPR technology after course completion. We anticipate future online learning course development to showcase complex molecular technology that will be valuable for tertiary education, as well as for those in the wider community interested in understanding important advances in biomedicine.

Introduction

The pivotal discovery of the molecular structure of DNA by Rosalind Franklin in the 1950s started a genetic revolution that today allows scientists to use specific and precise genome-editing tools, including Clustered Regularly Interspaced Palindromic Repeats (CRISPR)-CRISPR-associated protein (Cas9) technology (hereafter referred to as CRISPR) [ 1 ]. Modern molecular tools and technologies greatly increase the speed of scientific discovery, providing novel therapeutic avenues to combat disease. Technological advancements highlight a need to easily convey their underlying biochemical principles to ensure correct application of the technologies. Here, we describe the development of a novel online learning course as an innovative way to teach learners about genome editing with CRISPR. For this, we utilised the combined expertise of science educators and world leading CRISPR experts present at the Walter and Eliza Hall Institute of Medical Research (WEHI) to create a wholly online, interactive learning course to convey the principles of CRISPR to learners without extensive knowledge in science or genome editing. Using the online course creation tool Articulate 360 (Articulate Global LLC, New York, U.S.A.), we created scaffolded lessons on DNA, genome editing and CRISPR in a multimodal course. We anticipate that online learning courses, due to their flexibility and ease in use and design, will complement traditional lab-based teaching of molecular techniques, foster engagement with the public about technologies and research, and further address the need for interactive remote learning which has been exposed by the COVID-19 pandemic [ 2 , 3 ].

The creation of this novel CRISPR 101 online learning course facilitates self-directed learning by incorporating a fully automated wholly online delivery of the course content. This is reflected in the design of the learning outcomes which allowed for a scaffolded approach by introducing content in earlier lessons that is needed to understand more advanced lessons. Furthermore, this scaffolding approach helps demonstrate to the learner that all topics are integrated and that the contents of the course are connected. In the first instance, we designed the course to target an audience with no or limited scientific background to engage the wider community with scientific technologies and to educate staff and students with sophisticated technologies performed at the institute. The online course creation tool Articulate 360 (Articulate Global LLC, New York, U.S.A.) allows for a flexible design to cater for different student learning styles with a focus on knowledge transfer through digital technology. To create this novel online course and to nurture an innovative way to teach a complex biomolecular technology, we harnessed WEHI’s strength in both education and research.

The five stages of design

Pedagogical and content knowledge (PCK) is paramount to successful learning outcomes [ 2 , 4 ]. Each learning objective should be accompanied by meaningful pedagogical methods, especially in a technology-driven environment [ 5 ]. This is especially true in biological sciences as new concepts arise and new complex technologies are being developed [ 6–8 ]. At WEHI, we are in strong position to bring science educators and scientists together to utilise our expertise by combining effective pedagogical techniques and deep content knowledge that enables the design of a novel online learning course centred around the learner’s needs ( Figure 1 ). In this regard, WEHI science educators bring expert knowledge about scientific teaching practices (pedagogical knowledge) together with WEHI lab-based scientists who serve as subject matter experts (SMEs) (content knowledge). This facilitates designing learning tasks to address the specific needs of the learner’s cohort.

The course was designed in five phases based on the SAM model. (1) Conceiving the idea and concept by bringing WEHI’s science educators and world-leading CRISPR scientists (SMEs) together to develop the framework for the course. (2) Design of course content based on discussion with the SME. (3) Implementation of the course content into the online course creation tool ‘Articulate 360’ and creating all building blocks. (4) The course is launched and advertised to the initial cohort it was designed for. (5) Evaluation of the course by asking learners to participate in a survey. The arrows indicate that the design process is an ongoing iterative process with evaluation and feedback informing course design.

We followed a five-stage design approach for the creation of CRISPR 101 ( Figure 1 ) using iterative cycles, which is based on the successive approximation model (SAM) [ 9 ] allowing for a flexible design process utilising SMEs. This allowed for an incremental process and ensured the continued integration of novel pedagogical methods and evolving content knowledge. The first step involves the conception of the course highlighted by the need to (1) find innovative ways to educate staff and students on the biomolecular technologies used at WEHI, and (2) to engage the wider community with scientific technologies aiding therapeutic avenues. We identified learners without extensive knowledge of science or genome editing as target audience for this course, and we also aimed to generate a course that would be applicable to educate the community on technologies used in modern bioscience. The design phase (step 2) ensured a scaffolding approach, as syntactic knowledge on the basics of DNA is required to learn and understand more advanced content on editing DNA. When building the course (step 3) we included different learning approaches to cater for various learning styles, defined as how individuals approach tasks and process information when learning [ 10 ]. According to the VARK model, the predominant learning styles are visual, auditory, reading, writing and kinaesthetic [ 11 , 12 ]. To accommodate these styles, we included articles to read, videos to watch, podcasts to listen to, and interactive tasks for kinaesthetic learners. Learners choose a combination of learning approaches to assist in their understanding of the material ( Figure 2 ). After completing the first steps, we have initially launched the course internally within WEHI (step 4). In order to receive feedback and assess the effectiveness of the course, participants of the course were asked to complete a short voluntary survey (step 5) upon completion of the course. Survey results informed modifications and future course design. At all design phases, close liaison between science educators and SMEs ensured the integration of content and pedagogy.

Throughout the course design features were used as learning activities to engage learners with the content. ( A ) A click-through image introducing the learner to new content step-by-step at the learner’s pace, e.g. the introduction of the bacterial CRISPR locus as shown here. ( B ) An interactive image to engage the learner with the content and introducing more detailed information at the learner’s pace, e.g. a hypothetical gene editing experiment as shown here. ( C ) Videos to break up content and to convey information in an easily comprehensible manner, e.g. on DNA cloning as shown here ( D ) Voluntary checks have been included at the end of each lesson to help the learner recapitulate the learned content, that amongst other contain multiple-choice questions as shown here.

The learning outcomes follow the history of CRISPR development

Identifying and formulating learning outcomes was guided by the principles of Bloom’s taxonomy, and the updated version by Krathwohl allows for the inclusion of action-based verbs to indicate that learning is an active process [ 13 ]. Instructional design software as harnessed in Articulate 360 further re-emphasises those action-based verbs. The course presented here mainly integrates the Bloom levels Understand and Apply as they are particularly important for molecular bioscience in the context of a highly specialised medical research institute, where students are required to understand and apply modern scientific technologies. Within the CRISPR 101 online learning course, each lesson consists of three main learning outcomes, (e.g. ‘Understand how CRISPR was adapted to become a genome editing tool.’) that use the above mentioned Bloom’s action verbs.

Collection of survey data to assess the effectiveness of the course

To assess the effectiveness of the novel CRISPR 101 online learning course, we designed a survey to capture feedback from course participants upon completion. Questions were based on the Kirkpatrick model [ 14 ] while keeping in mind that there is no formal assessment for this course. Instead, voluntary knowledge checks have been used throughout to assist with learning. Questions for the survey are formulated to address learners understanding of course content, how well information was communicated, the use of the platform itself, and what learners enjoyed most about the course. We used the SurveyMonkey (Momentive Inc., San Mateo, California, U.S.A.) interface to gather survey data.

We successfully completed the five design phases ( Figure 1 ) and initially launched the course internally into WEHI’s community. While the course has since become publicly available ( www.wehi.edu.au/education/learning-hub ), findings in this manuscript contain data from WEHI’s internal launch. This is WEHI’s inaugural wholly online learning course showcasing a complex molecular technology and represents a free interactive online learning resource introducing CRISPR-Cas9 technology to the wider community.

The composition of CRISPR 101

We included three modules in the course (Basics of DNA, Introduction to Genome Editing, Genome Editing with CRISPR), and the course comprised a total of 14 lessons. Learners follow a self-directed learning approach, with the course content completed in 2–5 h, depending on interaction with included resources and prior knowledge. Utilising the Articulate 360 (Articulate Global LLC, New York, U.S.A.) interface technology, major design elements to aid learning include click-through images, interactive images, videos, and voluntary knowledge checks ( Figure 2 ). Click-through images are of particular importance for the learner as new content is revealed upon active engagement by the learner, revealing a new image upon click, thereby introducing content step-by-step at the learner’s pace. Similarly, interactive images allow for studying at the learner’s pace as additional content is revealed by clicking on the plus-symbols of the image ( Figure 2 B). Voluntary knowledge checks are also used by a similar resource introducing complex scientific technology (‘CryoEM 101’, University of Utah), and represent a powerful to reinforce the learned concepts. This is also further supported by additional resources, such as articles, research papers or interviews with scientists. There is no formal assessment for this course and learners engage with the content depending on their individual needs and scientific background.

Iterative design process

The strength of our design approach is the collaborative nature by including SMEs and course testers external to the design team in all stages of the course design ( Figure 1 ). Together with using the Articulate design interface, this allowed for rapid development of individual lessons/modules, similar to computer software prototyping [ 15 ] that can be evaluated by SMEs and tested by a selected cohort of people providing immediate feedback. Indeed, the course was generated by creating one lesson at a time allowing for creative design by finding the best ways of using each design element ( Figure 2 ) to convey a particular content. Once a module was finished, a current version of the course was shared via Review 360 (Articulate Global LLC, New York, U.S.A.) with external testers. Using this process, we were able to quickly adjust the overall language used to avoid scientific jargon keeping the target audience in mind. Future iterative cycles are warranted to include feedback from course participants further improving content and design features of the course.

Course participants have increased knowledge of CRISPR technology

For course evaluation, we launched the course internally at WEHI. Of note, we relied on voluntary course enrolment, and there was no incentive provided to either complete the course or the survery. For the present study, survey responses from 14 self-selected participants were collected upon completion of the course as part of our initial course launch. Those participants are all part of WEHI (four professional services staff, six research assistants, three students, one participant unspecified) due to the nature of the internal launch. Evaluating the results revealed success in conveying the learning outcomes and understanding of the material, with 100% of course participants reporting that they have increased knowledge of CRISPR technology, and 90% agreeing that the depth of information covered met their learning needs ( Figure 3 A).

Participants of the course after a preliminary internal launch were asked to fill out at a survey at completion of the course. ( A ) Bar chart showing that learners reported an improved understanding of CRISPR technology, and that the depth of information and number of topics covered met their learning needs. ( B ) Bar chart reporting answers of respondents indicating that information in the course was communicated effectively and made interesting with the range of resources supplied. Learners also indicated that the platform was easy to navigate. ( C ) A word cloud summarising free-text feedback of respondents highlighting the functionality (e.g., ‘resources’) and technology (e.g., ‘understandable’) of the course. Survey results have been collected via SurveyMonkey (Momentive Inc., San Mateo, California, U.S.A.), n =14.

The survey results highlighted the ease of use of the course platform and the effectiveness in which to communicate complex topics; 100% of respondents agreed that the course was easy to navigate, the information was communicated clearly, and the subject matter was made compelling ( Figure 3 B).

Finally, we generated a word cloud to summarise free-text replies of course participants about the best features of the course. This word cloud highlights the functionality of the course and the use of resources as major benefits of the course ( Figure 3 C). Key words included ‘Understandable’ and ‘Resources’ as the most common, with ‘videos, informative, interesting, insightful, structured and learning formats’ also mentioned frequently.

Contribution to the field

With increasing uptake of genome-editing technologies to cure diseases, and the recent Nobel Prize being awarded to the Emmanuelle Charpentier and Jennifer Doudna, who first demonstrated that CRISPR can be used to edit DNA [ 16 ], this novel online learning resource will be invaluable in demystifying an important tool in the modern biomolecular toolbox.

The newly developed CRISPR 101 online learning course takes a novel approach to explaining the history and applications of CRISPR technology. While other public resources explaining CRISPR technology exist (‘CRISPR-Cas9 Mechanisms and Applications’ by HHMI BioInteractive, Howard Hughes Medical Institute, Chevy Chase, MD, U.S.A.; ’CRISPR made simple’ by Innovative Genomics Institute, Berkely, CA, U.S.A.), the self-paced approach and careful content planning with a student-centred view, allows our newly developed CRISPR 101 online learning course to be useful for those with a limited science background, as well as students who are new to CRISPR and genome editing. Showing the flexibility of our design approach, this course can be modified to cater more advanced users in future versions of the course. Importantly, subsequent future interrogation of the course effectiveness is warranted by performing structured investigation to include data gathered following the public launch of the course. In summary, the generation of this resource demonstrates a proof of principle that e-learning resources can be used to explain complex concepts in molecular bioscience.

• The importance of the field : Complex biomolecular technologies are being increasingly used in scientific research highlighting a need to find innovative ways to educate learners on the molecular background of those technologies. Due to their flexibility and ease in use and design, online learning courses offer great potential to complement traditional lab-based teaching showcasing biomolecular technologies.
• A summary of the current thinking : Recent advancements and breakthroughs in molecular technologies, including the revolutionary use of CRISPR-Cas9 for genome editing, have accelerated scientific research and therapeutic outcomes. The complexity of these technologies highlights a need to develop innovative ways to educate learners on the molecular background while further harnessing remote online learning tools.
• Comments on future directions : The novel online learning course ‘CRISPR 101’ presented here was designed to address the need to educate learners with a limited background in science or genome editing. Future courses will have an increased focus on lab-specific applications, to educate research higher degree research students and scientific staff using those complex biomolecular technologies. We anticipate that the use of novel online learning courses will be increasingly used to (1) engage with the wider community and (2) to complement traditional lab-based teaching.

Acknowledgements

We would like to thank Naveena Nekkalapudi and Mary Donaldson who both generously gave their time to proofread the CRISPR 101 learning course and ensure it was pitched at the correct level. Both our proofreaders are members of the WEHI Consumer Buddy Program. This program connects our researchers with the community, the consumers of our research. We also would like to thank all course participants who provided valuable feedback on the course.

Abbreviations

Competing interests.

The authors declare that there are no competing interests associated with the manuscript.

The authors declare that there are no sources of funding to be acknowledged.

Open Access

Open access for this article was enabled by the participation of University Of Melbourne in an all-inclusive Read & Publish agreement with Portland Press and the Biochemical Society under a transformative agreement with CAUL .

Author Contribution

M.P., N.C., M.J.H. and K.B.O. designed and created the course, and drafted this manuscript.

Ethics Approval

The current study is considered low risk and qualifies for exemption from ethical review.

Declaration of Interests

N.C., M.J.H. and K.B.O. are employees at WEHI. M.P. is an honorary staff member at WEHI. WEHI is a not-for-profit organisation.