3 kinds of thesis statements

How To Write 3 Types Of Thesis Statements

A thesis statement is “a short summary of the main idea, purpose, or argument of an essay that usually appears in the first paragraph.” It’s generally only one or two sentences in length.

A strong thesis statement is the backbone of a well-organized paper, and helps you decide what information is most important to include and how it should be presented.

What is a good thesis statement?

This thesis statement, for example, could open a paper on Dr. Martin Luther King Jr.’s importance as a civil rights leader: “Dr. Martin Luther King Jr. was one of the most influential figures of the American civil rights movement. His moving speeches and nonviolent protests helped unite a nation divided by race.”

This example lays out the writer’s basic argument (King was an important leader of the American civil rights movement), offers two areas of evidence (his speeches and nonviolent protests), and explains why the argument matters (united a divided nation).

A good thesis statement delivers a clear message about the scope of the topic and the writer’s approach to the subject. In contrast, poor thesis statements fail to take a position, are based solely on personal opinion, or state an obvious truth. For example, “Democracy is a form of government,” is a weak thesis statement because it’s too general, doesn’t adopt a stance, and states a well-known fact that doesn’t need further explanation.

What are the different types of thesis statements?

Thesis statements can be explanatory , argumentative , or analytical . The type of paper determines the form of the thesis statement.

1. Explanatory thesis statement

An explanatory thesis statement is based solely on factual information. It doesn’t contain personal opinions or make claims that are unsupported by evidence. Instead, it tells the reader precisely what the topic will be and touches on the major points that will be explored in the essay. An explanatory thesis statement is sometimes also called an expository thesis statement .

For example: The core components of a healthy lifestyle include a nutritious diet, regular exercise, and adequate sleep.

2. Argumentative thesis statement

In an argumentative essay, the writer takes a stance on a debatable topic. This stance, and the claims to back it up, is the argument . Unlike an explanatory thesis statement, an argumentative thesis statement allows the writer to take a position about a subject (e.g., the deeper meaning of a literary text, the best policy towards a social problem) and to convince readers of their stance. The body of the argumentative essay uses examples and other evidence to support the writer’s opinion.

For example: Shakespeares’s Taming of the Shrew uses humor, disguise, and social roles to criticize the lack of power women had in Elizabethan England.

3. Analytical thesis statement

An analytical thesis statement analyzes, or breaks down, an issue or idea into its different parts. Then, it evaluates the topic and clearly presents the order of the analysis to the reader.

For example: The school’s policy to start its school day an hour later revealed three related benefits: students were more alert and attentive in class, had a more positive about school, and performed better in their coursework.

How to write a thesis statement

Writing a thesis statement requires time and careful thought. The thesis statement should flow naturally from research and set out the writer’s discoveries. When composing a thesis statement, make sure it focuses on one main idea that can be reasonably covered within your desired page length. Try not to write about the entire history of America, for example, in a three-page paper.

Although deciding upon a thesis statement can be challenging and time-consuming, a strong thesis statement can make the paper both easier to write and more enjoyable to read. Don’t worry: we’re not going to leave you hanging! We’ve got a whole article to help you write an effective thesis statement here .

Ways To Say

Synonym of the day

Thesis Statements

What this handout is about.

This handout describes what a thesis statement is, how thesis statements work in your writing, and how you can craft or refine one for your draft.

Introduction

Writing in college often takes the form of persuasion—convincing others that you have an interesting, logical point of view on the subject you are studying. Persuasion is a skill you practice regularly in your daily life. You persuade your roommate to clean up, your parents to let you borrow the car, your friend to vote for your favorite candidate or policy. In college, course assignments often ask you to make a persuasive case in writing. You are asked to convince your reader of your point of view. This form of persuasion, often called academic argument, follows a predictable pattern in writing. After a brief introduction of your topic, you state your point of view on the topic directly and often in one sentence. This sentence is the thesis statement, and it serves as a summary of the argument you’ll make in the rest of your paper.

What is a thesis statement?

A thesis statement:

• tells the reader how you will interpret the significance of the subject matter under discussion.
• is a road map for the paper; in other words, it tells the reader what to expect from the rest of the paper.
• directly answers the question asked of you. A thesis is an interpretation of a question or subject, not the subject itself. The subject, or topic, of an essay might be World War II or Moby Dick; a thesis must then offer a way to understand the war or the novel.
• makes a claim that others might dispute.
• is usually a single sentence near the beginning of your paper (most often, at the end of the first paragraph) that presents your argument to the reader. The rest of the paper, the body of the essay, gathers and organizes evidence that will persuade the reader of the logic of your interpretation.

If your assignment asks you to take a position or develop a claim about a subject, you may need to convey that position or claim in a thesis statement near the beginning of your draft. The assignment may not explicitly state that you need a thesis statement because your instructor may assume you will include one. When in doubt, ask your instructor if the assignment requires a thesis statement. When an assignment asks you to analyze, to interpret, to compare and contrast, to demonstrate cause and effect, or to take a stand on an issue, it is likely that you are being asked to develop a thesis and to support it persuasively. (Check out our handout on understanding assignments for more information.)

How do I create a thesis?

A thesis is the result of a lengthy thinking process. Formulating a thesis is not the first thing you do after reading an essay assignment. Before you develop an argument on any topic, you have to collect and organize evidence, look for possible relationships between known facts (such as surprising contrasts or similarities), and think about the significance of these relationships. Once you do this thinking, you will probably have a “working thesis” that presents a basic or main idea and an argument that you think you can support with evidence. Both the argument and your thesis are likely to need adjustment along the way.

Writers use all kinds of techniques to stimulate their thinking and to help them clarify relationships or comprehend the broader significance of a topic and arrive at a thesis statement. For more ideas on how to get started, see our handout on brainstorming .

How do I know if my thesis is strong?

If there’s time, run it by your instructor or make an appointment at the Writing Center to get some feedback. Even if you do not have time to get advice elsewhere, you can do some thesis evaluation of your own. When reviewing your first draft and its working thesis, ask yourself the following :

• Do I answer the question? Re-reading the question prompt after constructing a working thesis can help you fix an argument that misses the focus of the question. If the prompt isn’t phrased as a question, try to rephrase it. For example, “Discuss the effect of X on Y” can be rephrased as “What is the effect of X on Y?”
• Have I taken a position that others might challenge or oppose? If your thesis simply states facts that no one would, or even could, disagree with, it’s possible that you are simply providing a summary, rather than making an argument.
• Is my thesis statement specific enough? Thesis statements that are too vague often do not have a strong argument. If your thesis contains words like “good” or “successful,” see if you could be more specific: why is something “good”; what specifically makes something “successful”?
• Does my thesis pass the “So what?” test? If a reader’s first response is likely to  be “So what?” then you need to clarify, to forge a relationship, or to connect to a larger issue.
• Does my essay support my thesis specifically and without wandering? If your thesis and the body of your essay do not seem to go together, one of them has to change. It’s okay to change your working thesis to reflect things you have figured out in the course of writing your paper. Remember, always reassess and revise your writing as necessary.
• Does my thesis pass the “how and why?” test? If a reader’s first response is “how?” or “why?” your thesis may be too open-ended and lack guidance for the reader. See what you can add to give the reader a better take on your position right from the beginning.

Suppose you are taking a course on contemporary communication, and the instructor hands out the following essay assignment: “Discuss the impact of social media on public awareness.” Looking back at your notes, you might start with this working thesis:

Social media impacts public awareness in both positive and negative ways.

You can use the questions above to help you revise this general statement into a stronger thesis.

• Do I answer the question? You can analyze this if you rephrase “discuss the impact” as “what is the impact?” This way, you can see that you’ve answered the question only very generally with the vague “positive and negative ways.”
• Have I taken a position that others might challenge or oppose? Not likely. Only people who maintain that social media has a solely positive or solely negative impact could disagree.
• Is my thesis statement specific enough? No. What are the positive effects? What are the negative effects?
• Does my thesis pass the “how and why?” test? No. Why are they positive? How are they positive? What are their causes? Why are they negative? How are they negative? What are their causes?
• Does my thesis pass the “So what?” test? No. Why should anyone care about the positive and/or negative impact of social media?

After thinking about your answers to these questions, you decide to focus on the one impact you feel strongly about and have strong evidence for:

Because not every voice on social media is reliable, people have become much more critical consumers of information, and thus, more informed voters.

This version is a much stronger thesis! It answers the question, takes a specific position that others can challenge, and it gives a sense of why it matters.

Let’s try another. Suppose your literature professor hands out the following assignment in a class on the American novel: Write an analysis of some aspect of Mark Twain’s novel Huckleberry Finn. “This will be easy,” you think. “I loved Huckleberry Finn!” You grab a pad of paper and write:

Mark Twain’s Huckleberry Finn is a great American novel.

You begin to analyze your thesis:

• Do I answer the question? No. The prompt asks you to analyze some aspect of the novel. Your working thesis is a statement of general appreciation for the entire novel.

Think about aspects of the novel that are important to its structure or meaning—for example, the role of storytelling, the contrasting scenes between the shore and the river, or the relationships between adults and children. Now you write:

In Huckleberry Finn, Mark Twain develops a contrast between life on the river and life on the shore.

• Do I answer the question? Yes!
• Have I taken a position that others might challenge or oppose? Not really. This contrast is well-known and accepted.
• Is my thesis statement specific enough? It’s getting there–you have highlighted an important aspect of the novel for investigation. However, it’s still not clear what your analysis will reveal.
• Does my thesis pass the “how and why?” test? Not yet. Compare scenes from the book and see what you discover. Free write, make lists, jot down Huck’s actions and reactions and anything else that seems interesting.
• Does my thesis pass the “So what?” test? What’s the point of this contrast? What does it signify?”

After examining the evidence and considering your own insights, you write:

Through its contrasting river and shore scenes, Twain’s Huckleberry Finn suggests that to find the true expression of American democratic ideals, one must leave “civilized” society and go back to nature.

This final thesis statement presents an interpretation of a literary work based on an analysis of its content. Of course, for the essay itself to be successful, you must now present evidence from the novel that will convince the reader of your interpretation.

Works consulted

We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.

Anson, Chris M., and Robert A. Schwegler. 2010. The Longman Handbook for Writers and Readers , 6th ed. New York: Longman.

Lunsford, Andrea A. 2015. The St. Martin’s Handbook , 8th ed. Boston: Bedford/St Martin’s.

Ramage, John D., John C. Bean, and June Johnson. 2018. The Allyn & Bacon Guide to Writing , 8th ed. New York: Pearson.

Ruszkiewicz, John J., Christy Friend, Daniel Seward, and Maxine Hairston. 2010. The Scott, Foresman Handbook for Writers , 9th ed. Boston: Pearson Education.

You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill

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While Sandel argues that pursuing perfection through genetic engineering would decrease our sense of humility, he claims that the sense of solidarity we would lose is also important.

This thesis summarizes several points in Sandel’s argument, but it does not make a claim about how we should understand his argument. A reader who read Sandel’s argument would not also need to read an essay based on this descriptive thesis.  

Broad thesis (arguable, but difficult to support with evidence) 

Michael Sandel’s arguments about genetic engineering do not take into consideration all the relevant issues.

This is an arguable claim because it would be possible to argue against it by saying that Michael Sandel’s arguments do take all of the relevant issues into consideration. But the claim is too broad. Because the thesis does not specify which “issues” it is focused on—or why it matters if they are considered—readers won’t know what the rest of the essay will argue, and the writer won’t know what to focus on. If there is a particular issue that Sandel does not address, then a more specific version of the thesis would include that issue—hand an explanation of why it is important.  

Arguable thesis with analytical claim 

While Sandel argues persuasively that our instinct to “remake” (54) ourselves into something ever more perfect is a problem, his belief that we can always draw a line between what is medically necessary and what makes us simply “better than well” (51) is less convincing.

This is an arguable analytical claim. To argue for this claim, the essay writer will need to show how evidence from the article itself points to this interpretation. It’s also a reasonable scope for a thesis because it can be supported with evidence available in the text and is neither too broad nor too narrow.  

Arguable thesis with normative claim 

Given Sandel’s argument against genetic enhancement, we should not allow parents to decide on using Human Growth Hormone for their children.

This thesis tells us what we should do about a particular issue discussed in Sandel’s article, but it does not tell us how we should understand Sandel’s argument.  

Questions to ask about your thesis 

• Is the thesis truly arguable? Does it speak to a genuine dilemma in the source, or would most readers automatically agree with it?  
• Is the thesis too obvious? Again, would most or all readers agree with it without needing to see your argument?  
• Is the thesis complex enough to require a whole essay's worth of argument?  
• Is the thesis supportable with evidence from the text rather than with generalizations or outside research?  
• Would anyone want to read a paper in which this thesis was developed? That is, can you explain what this paper is adding to our understanding of a problem, question, or topic?
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3.3: Thesis Statements

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Learning Objectives

• Identify strong thesis statements

The thesis statment is the key to most academic writing. The purpose of academic writing is to offer your own insights, analyses, and ideas—to show not only that you understand the concepts you’re studying, but also that you have thought about those concepts in your own way and agreed or disagreed, or developed your own unique ideas as a result of your analysis. The thesis statement is the one sentence that encapsulates the result of your thinking, as it offers your main insight or argument in condensed form.

We often use the word “argument” in English courses, but we do not mean it in the traditional sense of a verbal fight with someone else. Instead, you “argue” by taking a position on an issue and supporting it with evidence. Because you’ve taken a position about your topic, someone else may be in a position to disagree (or argue) with the stance you have taken. Think about how a lawyer presents an argument or states their case in a courtroom—similarly, you want to build a case around the main idea of your essay. For example, in 1848, when Elizabeth Cady Stanton drafted “The Declaration of Sentiments,” she was thinking about how to convince New York State policymakers to change the laws to allow women to vote. Stanton was making an argument .

Some consider all writing a form of argument—or at least of persuasion. After all, even if you’re writing a letter or an informative essay, you’re implicitly trying to persuade your audience to care about what you’re saying. Your thesis statement represents the main idea—or point—about a topic or issue that you make in an argument. For example, let’s say that your topic is social media. A thesis statement about social media could look like one of the following sentences:

• Social media are hurting the communication skills of young Americans.
• Social media are useful tools for social movements.

A basic thesis sentence has two main parts:

• Topic: What you’re writing about
• Angle: What your main idea is about that topic

Example Thesis Statements

Thesis: A regular exercise regime leads to multiple benefits, both physical and emotional.

Topic: Regular exercise regime

Angle: Leads to multiple benefits

Thesis: Adult college students have different experiences than typical, younger college students.

Topic: Adult college students

Angle: Have different experiences

Thesis: The economics of television have made the viewing experience challenging for many viewers because shows are not offered regularly, similar programming occurs at the same time, and commercials are rampant.

Topic: Television viewing

Angle: Challenging because shows shifted, similar programming, and commercials

Identifying the Thesis Statement

You’ll remember that the first step of the reading process, previewing , allows you to get a big-picture view of the document you’re reading. This way, you can begin to understand the structure of the overall text. The most important step in getting a good understanding of an essay or book is to find the thesis statement.

A thesis consists of a specific topic and an angle on the topic. All of the other ideas in the text support and develop the thesis. The thesis statement is often found in the introduction, sometimes after an initial “hook” or interesting story; sometimes, however, the thesis is not explicitly stated until the end of an essay, and sometimes it is not stated at all. In those instances, there is an implied thesis statement, in which you can generally extract the thesis statement by looking for a few key sentences and ideas.

Most readers expect to see the point of your argument (the thesis statement) within the first few paragraphs. This does not mean that it has to be placed there every time. Some writers place it at the very end, slowly building up to it throughout their work, to explain a point after the fact. Others don’t bother with one at all but feel that their thesis is “implied” anyway. Beginning writers, however, should avoid the implied thesis unless certain of the audience. Almost every professor will expect to see a clearly discernible thesis sentence in the introduction.

Thesis statements vary based on the rhetorical strategy of the essay, but thesis statements typically share the following characteristics:

• Presents the main idea
• Most often is one sentence
• Tells the reader what to expect
• Is a summary of the essay topic
• Usually worded to have an argumentative edge
• Written in the third person

The following “How to Identify a Thesis Statement” video offers advice for locating a text’s thesis statement. It asks you to write one or two sentences that summarize the text. When you write that summary, without looking at the text itself, you’ve most likely paraphrased the thesis statement.

You can view the transcript for “How to Identify the Thesis Statement” here (download).

Writing a Thesis Statement

Remember your thesis should answer two simple questions: What issue are you writing about, and what is your position, or angle, on it?

A thesis statement is a single sentence (or sometimes two) that provides the answers to these questions clearly and concisely. Ask yourself, “What is my paper about, exactly?” to help you develop a precise and directed thesis, not only for your reader, but for you as well.

A good thesis statement will:

• Consist of just one idea
• Make your position clear
• Be specific
• Have evidence to support it
• Be interesting
• Be written clearly

A good basic structure for a thesis statement is “they say, I say.” What is the prevailing view, and how does your position differ from it? However, avoid limiting the scope of your writing with an either/or thesis under the assumption that your view must be strictly contrary to their view.

Following are some typical thesis statements:

• Although many readers believe Romeo and Juliet to be a tale about the ill fate of two star-crossed lovers, it can also be read as an allegory concerning a playwright and his audience.
• The “War on Drugs” has not only failed to reduce the frequency of drug-related crimes in America but actually enhanced the popular image of dope peddlers by romanticizing them as desperate rebels fighting for a cause.
• The bulk of modern copyright law was conceived in the age of commercial printing, long before the Internet made it so easy for the public to compose and distribute its own texts. Therefore, these laws should be reviewed and revised to better accommodate modern readers and writers.
• The usual moral justification for capital punishment is that it deters crime by frightening would-be criminals. However, the statistics tell a different story.
• If students really want to improve their writing, they must read often, practice writing, and receive quality feedback from their peers.
• Plato’s dialectical method has much to offer those engaged in online writing, which is far more conversational in nature than print.

Thesis Problems to Avoid

Although you have creative control over your thesis sentence, you still should try to avoid the following problems, not for stylistic reasons, but because they indicate a problem in the thinking that underlies the thesis sentence.

• For example, look at the thesis: Hospice workers need support. This is a thesis sentence; it has a topic (hospice workers) and an angle (need support). But the angle is very broad. When the angle in a thesis sentence is too broad, the writer may not have carefully thought through the specific support for the rest of the writing. A thesis angle that’s too broad makes it easy to fall into the trap of offering information that deviates from that angle.
• Consider this thesis: Hospice workers have a 55% turnover rate compared to the general health care population’s 25% turnover rate. This sentence really isn’t a thesis sentence at all, because there’s no angle idea to support. A narrow statistic, or a narrow statement of fact, doesn’t offer the writer’s own ideas or analysis about a topic. A clearer example of a thesis statement with an angle of development would be the following:

Practice identifying strong thesis statements in the following interactive.

https://lumenlearning.h5p.com/content/1290916673521810808/embed

argument : in writing, the argument is the main stance, claim, or position that is supported with evidence

explicit thesis : a clear and direct statement of the writer’s claim

thesis statement : a statement of the topic of the piece of writing and the angle the writer has on that topic

Contributors and Attributions

• Modification, adaptation, and original content. Provided by : Lumen Learning. License : CC BY: Attribution
• Annotating an Essay or Book. Provided by : Excelsior OWL. Located at : https://owl.excelsior.edu/orc/what-to-do-while-reading/annotating/annotating-an-essay-or-book/ . License : CC BY: Attribution
• Checklist for a Thesis Statement. Provided by : Excelsior OWL. Located at : https://owl.excelsior.edu/esl-wow/getting-ready-to-write/developing-a-thesis/esl-checklist-for-a-thesis-statement/ . License : CC BY: Attribution
• Judging Thesis Statements. Provided by : Excelsior OWL. Located at : https://owl.excelsior.edu/esl-wow/getting-ready-to-write/developing-a-thesis/esl-judging-thesis-statements/ . License : CC BY: Attribution
• Research Writing and Argument. Authored by : Pavel Zemliansky. Located at : learn.saylor.org/mod/page/view.php?id=7163. Project : Methods of Discovery: A Guide to Research Writing. License : CC BY: Attribution
• Parts of a Thesis Sentence and Common Problems. Provided by : Excelsior OWL. Located at : https://owl.excelsior.edu/writing-process/thesis-sentence/thesis-sentence-angles/ . License : CC BY: Attribution
• Argument in College Writing. Provided by : Excelsior OWL. Located at : https://owl.excelsior.edu/argument-and-critical-thinking/argument-in-college-writing/ . License : CC BY: Attribution
• How to Identify the Thesis Statement. Authored by : Martha Ann Kennedy. Located at : https://youtu.be/di1cQgc1akg . License : All Rights Reserved . License Terms : Standard YouTube License

Developing a Thesis Statement

Many papers you write require developing a thesis statement. In this section you’ll learn what a thesis statement is and how to write one.

Keep in mind that not all papers require thesis statements . If in doubt, please consult your instructor for assistance.

What is a thesis statement?

A thesis statement . . .

• Makes an argumentative assertion about a topic; it states the conclusions that you have reached about your topic.
• Makes a promise to the reader about the scope, purpose, and direction of your paper.
• Is focused and specific enough to be “proven” within the boundaries of your paper.
• Is generally located near the end of the introduction ; sometimes, in a long paper, the thesis will be expressed in several sentences or in an entire paragraph.
• Identifies the relationships between the pieces of evidence that you are using to support your argument.

Not all papers require thesis statements! Ask your instructor if you’re in doubt whether you need one.

Identify a topic

Your topic is the subject about which you will write. Your assignment may suggest several ways of looking at a topic; or it may name a fairly general concept that you will explore or analyze in your paper.

Consider what your assignment asks you to do

Inform yourself about your topic, focus on one aspect of your topic, ask yourself whether your topic is worthy of your efforts, generate a topic from an assignment.

Below are some possible topics based on sample assignments.

Sample assignment 1

Analyze Spain’s neutrality in World War II.

Identified topic

Franco’s role in the diplomatic relationships between the Allies and the Axis

This topic avoids generalities such as “Spain” and “World War II,” addressing instead on Franco’s role (a specific aspect of “Spain”) and the diplomatic relations between the Allies and Axis (a specific aspect of World War II).

Sample assignment 2

Analyze one of Homer’s epic similes in the Iliad.

The relationship between the portrayal of warfare and the epic simile about Simoisius at 4.547-64.

This topic focuses on a single simile and relates it to a single aspect of the Iliad ( warfare being a major theme in that work).

Developing a Thesis Statement–Additional information

Your assignment may suggest several ways of looking at a topic, or it may name a fairly general concept that you will explore or analyze in your paper. You’ll want to read your assignment carefully, looking for key terms that you can use to focus your topic.

Sample assignment: Analyze Spain’s neutrality in World War II Key terms: analyze, Spain’s neutrality, World War II

After you’ve identified the key words in your topic, the next step is to read about them in several sources, or generate as much information as possible through an analysis of your topic. Obviously, the more material or knowledge you have, the more possibilities will be available for a strong argument. For the sample assignment above, you’ll want to look at books and articles on World War II in general, and Spain’s neutrality in particular.

As you consider your options, you must decide to focus on one aspect of your topic. This means that you cannot include everything you’ve learned about your topic, nor should you go off in several directions. If you end up covering too many different aspects of a topic, your paper will sprawl and be unconvincing in its argument, and it most likely will not fulfull the assignment requirements.

For the sample assignment above, both Spain’s neutrality and World War II are topics far too broad to explore in a paper. You may instead decide to focus on Franco’s role in the diplomatic relationships between the Allies and the Axis , which narrows down what aspects of Spain’s neutrality and World War II you want to discuss, as well as establishes a specific link between those two aspects.

Before you go too far, however, ask yourself whether your topic is worthy of your efforts. Try to avoid topics that already have too much written about them (i.e., “eating disorders and body image among adolescent women”) or that simply are not important (i.e. “why I like ice cream”). These topics may lead to a thesis that is either dry fact or a weird claim that cannot be supported. A good thesis falls somewhere between the two extremes. To arrive at this point, ask yourself what is new, interesting, contestable, or controversial about your topic.

As you work on your thesis, remember to keep the rest of your paper in mind at all times . Sometimes your thesis needs to evolve as you develop new insights, find new evidence, or take a different approach to your topic.

Derive a main point from topic

Once you have a topic, you will have to decide what the main point of your paper will be. This point, the “controlling idea,” becomes the core of your argument (thesis statement) and it is the unifying idea to which you will relate all your sub-theses. You can then turn this “controlling idea” into a purpose statement about what you intend to do in your paper.

Look for patterns in your evidence

Compose a purpose statement.

Consult the examples below for suggestions on how to look for patterns in your evidence and construct a purpose statement.

• Franco first tried to negotiate with the Axis
• Franco turned to the Allies when he couldn’t get some concessions that he wanted from the Axis

Possible conclusion:

Spain’s neutrality in WWII occurred for an entirely personal reason: Franco’s desire to preserve his own (and Spain’s) power.

Purpose statement

This paper will analyze Franco’s diplomacy during World War II to see how it contributed to Spain’s neutrality.

• The simile compares Simoisius to a tree, which is a peaceful, natural image.
• The tree in the simile is chopped down to make wheels for a chariot, which is an object used in warfare.

At first, the simile seems to take the reader away from the world of warfare, but we end up back in that world by the end.

This paper will analyze the way the simile about Simoisius at 4.547-64 moves in and out of the world of warfare.

Derive purpose statement from topic

To find out what your “controlling idea” is, you have to examine and evaluate your evidence . As you consider your evidence, you may notice patterns emerging, data repeated in more than one source, or facts that favor one view more than another. These patterns or data may then lead you to some conclusions about your topic and suggest that you can successfully argue for one idea better than another.

For instance, you might find out that Franco first tried to negotiate with the Axis, but when he couldn’t get some concessions that he wanted from them, he turned to the Allies. As you read more about Franco’s decisions, you may conclude that Spain’s neutrality in WWII occurred for an entirely personal reason: his desire to preserve his own (and Spain’s) power. Based on this conclusion, you can then write a trial thesis statement to help you decide what material belongs in your paper.

Sometimes you won’t be able to find a focus or identify your “spin” or specific argument immediately. Like some writers, you might begin with a purpose statement just to get yourself going. A purpose statement is one or more sentences that announce your topic and indicate the structure of the paper but do not state the conclusions you have drawn . Thus, you might begin with something like this:

• This paper will look at modern language to see if it reflects male dominance or female oppression.
• I plan to analyze anger and derision in offensive language to see if they represent a challenge of society’s authority.

At some point, you can turn a purpose statement into a thesis statement. As you think and write about your topic, you can restrict, clarify, and refine your argument, crafting your thesis statement to reflect your thinking.

As you work on your thesis, remember to keep the rest of your paper in mind at all times. Sometimes your thesis needs to evolve as you develop new insights, find new evidence, or take a different approach to your topic.

Compose a draft thesis statement

If you are writing a paper that will have an argumentative thesis and are having trouble getting started, the techniques in the table below may help you develop a temporary or “working” thesis statement.

Begin with a purpose statement that you will later turn into a thesis statement.

Assignment: Discuss the history of the Reform Party and explain its influence on the 1990 presidential and Congressional election.

Purpose Statement: This paper briefly sketches the history of the grassroots, conservative, Perot-led Reform Party and analyzes how it influenced the economic and social ideologies of the two mainstream parties.

Question-to-Assertion

If your assignment asks a specific question(s), turn the question(s) into an assertion and give reasons why it is true or reasons for your opinion.

Assignment : What do Aylmer and Rappaccini have to be proud of? Why aren’t they satisfied with these things? How does pride, as demonstrated in “The Birthmark” and “Rappaccini’s Daughter,” lead to unexpected problems?

Beginning thesis statement: Alymer and Rappaccinni are proud of their great knowledge; however, they are also very greedy and are driven to use their knowledge to alter some aspect of nature as a test of their ability. Evil results when they try to “play God.”

Write a sentence that summarizes the main idea of the essay you plan to write.

Main idea: The reason some toys succeed in the market is that they appeal to the consumers’ sense of the ridiculous and their basic desire to laugh at themselves.

Make a list of the ideas that you want to include; consider the ideas and try to group them.

• nature = peaceful
• war matériel = violent (competes with 1?)
• need for time and space to mourn the dead
• war is inescapable (competes with 3?)

Use a formula to arrive at a working thesis statement (you will revise this later).

• although most readers of _______ have argued that _______, closer examination shows that _______.
• _______ uses _______ and _____ to prove that ________.
• phenomenon x is a result of the combination of __________, __________, and _________.

What to keep in mind as you draft an initial thesis statement

Beginning statements obtained through the methods illustrated above can serve as a framework for planning or drafting your paper, but remember they’re not yet the specific, argumentative thesis you want for the final version of your paper. In fact, in its first stages, a thesis statement usually is ill-formed or rough and serves only as a planning tool.

As you write, you may discover evidence that does not fit your temporary or “working” thesis. Or you may reach deeper insights about your topic as you do more research, and you will find that your thesis statement has to be more complicated to match the evidence that you want to use.

You must be willing to reject or omit some evidence in order to keep your paper cohesive and your reader focused. Or you may have to revise your thesis to match the evidence and insights that you want to discuss. Read your draft carefully, noting the conclusions you have drawn and the major ideas which support or prove those conclusions. These will be the elements of your final thesis statement.

Sometimes you will not be able to identify these elements in your early drafts, but as you consider how your argument is developing and how your evidence supports your main idea, ask yourself, “ What is the main point that I want to prove/discuss? ” and “ How will I convince the reader that this is true? ” When you can answer these questions, then you can begin to refine the thesis statement.

Refine and polish the thesis statement

To get to your final thesis, you’ll need to refine your draft thesis so that it’s specific and arguable.

• Ask if your draft thesis addresses the assignment
• Question each part of your draft thesis
• Clarify vague phrases and assertions
• Investigate alternatives to your draft thesis

Consult the example below for suggestions on how to refine your draft thesis statement.

Sample Assignment

Choose an activity and define it as a symbol of American culture. Your essay should cause the reader to think critically about the society which produces and enjoys that activity.

• Ask The phenomenon of drive-in facilities is an interesting symbol of american culture, and these facilities demonstrate significant characteristics of our society.This statement does not fulfill the assignment because it does not require the reader to think critically about society.

Drive-ins are an interesting symbol of American culture because they represent Americans’ significant creativity and business ingenuity.

Among the types of drive-in facilities familiar during the twentieth century, drive-in movie theaters best represent American creativity, not merely because they were the forerunner of later drive-ins and drive-throughs, but because of their impact on our culture: they changed our relationship to the automobile, changed the way people experienced movies, and changed movie-going into a family activity.

While drive-in facilities such as those at fast-food establishments, banks, pharmacies, and dry cleaners symbolize America’s economic ingenuity, they also have affected our personal standards.

While drive-in facilities such as those at fast- food restaurants, banks, pharmacies, and dry cleaners symbolize (1) Americans’ business ingenuity, they also have contributed (2) to an increasing homogenization of our culture, (3) a willingness to depersonalize relationships with others, and (4) a tendency to sacrifice quality for convenience.

This statement is now specific and fulfills all parts of the assignment. This version, like any good thesis, is not self-evident; its points, 1-4, will have to be proven with evidence in the body of the paper. The numbers in this statement indicate the order in which the points will be presented. Depending on the length of the paper, there could be one paragraph for each numbered item or there could be blocks of paragraph for even pages for each one.

Complete the final thesis statement

The bottom line.

As you move through the process of crafting a thesis, you’ll need to remember four things:

• Context matters! Think about your course materials and lectures. Try to relate your thesis to the ideas your instructor is discussing.
• As you go through the process described in this section, always keep your assignment in mind . You will be more successful when your thesis (and paper) responds to the assignment than if it argues a semi-related idea.
• Your thesis statement should be precise, focused, and contestable ; it should predict the sub-theses or blocks of information that you will use to prove your argument.
• Make sure that you keep the rest of your paper in mind at all times. Change your thesis as your paper evolves, because you do not want your thesis to promise more than your paper actually delivers.

In the beginning, the thesis statement was a tool to help you sharpen your focus, limit material and establish the paper’s purpose. When your paper is finished, however, the thesis statement becomes a tool for your reader. It tells the reader what you have learned about your topic and what evidence led you to your conclusion. It keeps the reader on track–well able to understand and appreciate your argument.

Writing Process and Structure

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Getting Started with Your Paper

Interpreting Writing Assignments from Your Courses

Generating Ideas for

Creating an Argument

Thesis vs. Purpose Statements

Architecture of Arguments

Working with Sources

Quoting and Paraphrasing Sources

Using Literary Quotations

Citing Sources in Your Paper

Drafting Your Paper

Generating Ideas for Your Paper

Introductions

Paragraphing

Developing Strategic Transitions

Conclusions

Revising Your Paper

Peer Reviews

Reverse Outlines

Revising an Argumentative Paper

Revision Strategies for Longer Projects

Finishing Your Paper

Twelve Common Errors: An Editing Checklist

How to Proofread your Paper

Writing Collaboratively

Collaborative and Group Writing

Purdue Online Writing Lab Purdue OWL® College of Liberal Arts

Tips and Examples for Writing Thesis Statements

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This resource provides tips for creating a thesis statement and examples of different types of thesis statements.

Tips for Writing Your Thesis Statement

1. Determine what kind of paper you are writing:

• An analytical paper breaks down an issue or an idea into its component parts, evaluates the issue or idea, and presents this breakdown and evaluation to the audience.
• An expository (explanatory) paper explains something to the audience.
• An argumentative paper makes a claim about a topic and justifies this claim with specific evidence. The claim could be an opinion, a policy proposal, an evaluation, a cause-and-effect statement, or an interpretation. The goal of the argumentative paper is to convince the audience that the claim is true based on the evidence provided.

If you are writing a text that does not fall under these three categories (e.g., a narrative), a thesis statement somewhere in the first paragraph could still be helpful to your reader.

2. Your thesis statement should be specific—it should cover only what you will discuss in your paper and should be supported with specific evidence.

3. The thesis statement usually appears at the end of the first paragraph of a paper.

4. Your topic may change as you write, so you may need to revise your thesis statement to reflect exactly what you have discussed in the paper.

Thesis Statement Examples

Example of an analytical thesis statement:

The paper that follows should:

• Explain the analysis of the college admission process
• Explain the challenge facing admissions counselors

Example of an expository (explanatory) thesis statement:

• Explain how students spend their time studying, attending class, and socializing with peers

Example of an argumentative thesis statement:

• Present an argument and give evidence to support the claim that students should pursue community projects before entering college

How to Write Thesis Statement: Tips and Examples

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Thes-is not so difficult!

Often, when writing an essay for your college, you might wander off on several tangents distantly related to your topic. Think of your essay topic as a forest that you’ve been plopped down in. Navigating the forest might be difficult without a map, as there are various routes you can take. A thesis statement acts as a compass guiding you to the heart of the forest, where you can find the finest content. It also acts as a map for your readers, helping them know exactly where your essay is going and how. We’ve prepared this guide to help you understand exactly how to write a thesis statement, providing thesis statement examples at every step along the way. 

What is a thesis statement?

Typically placed at the end of your introduction, a thesis statement states the purpose of your essay in one or two sentences . Without it, your essay is simply a series of paragraphs in search of a point. A good thesis statement tells your reader which elements you will include in your paper and gives a clear idea of your opinion on them . In other words, it introduces the reader to your topic and illustrates exactly how you feel about it. It also helps you, as a writer, stay on track during the writing process. Let’s cut the chit-chat and look at how to write a thesis statement. 

To understand thesis statements, it is also important to understand what a thesis statement is not.

What is NOT a thesis statement?

Your thesis statement is NOT your topic

If you’re writing about the Second World War, your thesis statement will not be “World War II”. Instead, it would include the position you’re taking on World War II. In other words, what about World War II are you going to be debating or discussing?

Your thesis statement is NOT a fact about your topic

Your thesis statement must be debatable, which is why it cannot be a fact. Example : "World War II is known as the golden age of aviation." This is a fact and won’t be debated, so it cannot be a thesis statement. What about World War II being the golden age of aviation do you want to talk about in your paper? To find your thesis statement, ask yourself how or why. 

Your thesis statement is NOT a question

A thesis statement is not a question. A claim must be disputable and supported by logic and evidence. In contrast, a question cannot state anything. It's an excellent introduction to a thesis, but it's not a thesis statement. 

Your thesis statement is NOT an announcement

Now, imagine you’re writing a paper on studying in a foreign country . 

Incorrect Thesis Statements

A : “Studying in a foreign country.” B : “The global number of students who study abroad rises with an annual increase of 10%.” C : “Is studying abroad beneficial?” D : “In this essay, I will discuss the benefits of studying abroad .”

Ideal Thesis Statement

E : “Every college-level student must complete an undergraduate abroad programme. They will learn more during that semester abroad than they will during any other academic year." 

Fundamentals of Thesis Statements

Types of thesis statements.

Depending on your paper's aim, you can choose from different types of thesis statements. 

1. Argumentative

Aim : To persuade your reader of a claim Should : Takes a clear position Example : High school graduates should be obliged to participate in community service projects prior to attending college to develop their maturity and global knowledge. 

2. Expository

Aim : To analyse, interpret or evaluate different aspects of a topic Should : Map out the key points of your analysis and briefly introduce the conclusions you would draw from it Example : The typical college student's life is defined by time spent studying, attending classes, and socialising with peers. 

3. Analytical

Aim : To explain and discuss the facts of a topic Should : Summarise all the main points you will cover Example : An examination of the college admissions process reveals one difficulty for counsellors: accepting students with high test scores or strong extracurricular backgrounds. 

Parts of a Thesis Statement

There are two main parts of a thesis statement: 1. Topic – what the essay is about 2. Angle – your own insight or assertion about the topic 3. Evidence – reasons to support your opinion Make sure that all of the components of the working thesis for your essay are realistic as you build it by reviewing and analysing it: 

• Is there a thesis statement with a topic and an angle? 
• Does the angle offer a debatable insight?
• Is the angle supportable with examples and evidence?
• Is the angle appropriate for the essay's scope? 
• Are the reasons in the "because clause" clear, direct, and related to the claim in the angle? 

Placement of Thesis Statement

The thesis statement can generally be found in the essay's introductory paragraph, either at the beginning or the end of the paragraph. Placing your thesis statement at the start of your paper might grab attention but can come off as too direct. Instead, if you want to pique your readers' interest, we recommend placing your thesis statement at the end of your introduction, followed by some context.

Before you draft a thesis statement, ensure you understand the topic you’re writing about. You might have to write some body paragraphs to articulate your views on the subject. Don’t let yourself get carried away; the more you write without knowing your intended direction, the more you may have to rewrite your draft once you have a thesis in place. According to the kind of essay you're writing, your thesis will take on a slightly different appearance. But the essential point you wish to make should always be stated in the thesis statement. The rest of your essay should build off of this concept.

Three Steps of Writing a Thesis Statement

Step One: Brainstorm a topic

The first step is to choose a topic because you cannot develop a thesis statement unless you know what your paper is about. You might have already been assigned a topic. If not, then consider the following when picking your topic: 1. Pick a topic that you’re passionate about. 2. Narrow down your topic to something specific. 3. Check for adequate credible research sources beforehand. 

Step Two: Answer the question

Phrase your topic as a question. If you already know the answer, write it down; this will serve as a solid foundation for your thesis statement. If you don't already know the answer, conduct preliminary research to find out; the information you discover can be used as sources and proof in your essay's body paragraphs. 

Step Three: Revise your statement

Your initial thesis statement is unlikely to be flawless. Edit it, add what's missing, and refine it to make it the best it can be. If you're unsure, have a buddy read your thesis statement and then ask them what they believe your paper is going to be about. Your thesis statement has succeeded if you provide a correct response. 

Thesis Statement Template

If you’re stuck, try writing your initial statement as your personal opinion from a first-person perspective. To find your position on a topic and the evidence for your position, complete the following sentences. “In this paper, I will…” “I believe this because…”

Thesis Statement DOs and DON’Ts

1. DON'T be vague or mysterious.

Incorrect : This paper will discuss my reaction to Al Gore's viewpoint on global warming.

2. DO be as specific as possible about what your paper will argue.

Correct : While Al Gore does provide some strong evidence for global warming, he relies too heavily on scaring his audience, which weakens his argument. 

3. DON’T include a list of the topics of each body paragraph.

Incorrect : The play Macbeth shows that men and women differ in emotionalism, loyalty, and the way they deal with guilty feelings.

4. DO explain the overall theme of the essay in your thesis statement. 

Correct : The differences between Lady and Lord Macbeth's reactions to Duncan's murder demonstrate Shakespeare's view that men are more simplistic and straightforward than women. Exception : If your main point is a list, a listing thesis statement can be effective.

5. DON’T cram too many ideas into one sentence.

Incorrect : “Many people believe that the Constitution is an unquestionable document whose ideas must be taken literally; however, I believe that the Constitution is a living document that should be open to interpretation and updated as our country progresses, while remaining true to the general ideals upon which our country was founded.” 

6. DO break up your sentence if it becomes too long.

Correct : Many people believe that the Constitution is an unquestionable document whose ideas must be taken literally. However, I believe that the Constitution is a living instrument that should be open to interpretation and amended as our country grows while remaining true to the broad ideas upon which our country was created.

7. DON’T ramble on. DO make sure your essay has a point which is clearly articulated.

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Common Challenges Faced When Writing a Thesis Statement

1. Thesis Statement is too broad

If your thesis statement is too vague, you might not have put enough thought into the supporting details in the rest of your thesis. With a thesis statement that’s too broad, you might end up providing information that is not entirely relevant to your chosen angle.

2. Thesis Statement is too narrow

If your thesis statement is too narrow, it might fail to get across your own ideas and analysis of a topic. To solve this, you can avoid using a narrow statistic or a narrow statement of fact. Not just this, your thesis statement should also build curiosity in the reader, making them continue reading.

‍ 3. Wrong placement of thesis statement

As mentioned before, the thesis statement is usually placed in the introductory paragraph as this grabs the reader’s attention. However, placing it at the start of the introduction might come off as too direct. This is why we recommend writing it towards the end of the introductory paragraph, along with some context.

Check out the common mistakes made while writing a thesis and how to avoid them.

Writing a thesis statement requires more consideration than many other elements of an essay. However, because a thesis statement can summarise an entire argument in a few words, it is worth the extra effort to write this sentence. It can direct your research and argument, resulting in a tight, focused essay that makes readers think. If you're looking for tips to write a scholarship essay , research paper , or personal statement , look no further because we have it all right here for you. We've also got blogs for students beginning their careers with a guide to writing your very first resume. 

Frequently Asked Questions

Why do i need to write a thesis statement, how long should a thesis statement be, how to write a thesis statement well, where should i place my thesis statement, what are the different types of thesis statements.

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Writing a Great Thesis Statement: Things to keep in mind

A thesis statement is a concise and clear statement that appears at the beginning of an academic paper, usually in the introduction. It serves as a roadmap for the reader, outlining the main argument or point that the paper will explore and support. The thesis statement should be specific and focused, and it should provide a clear indication of the scope and purpose of the paper. It is a critical component of the paper as it guides the writer in developing the content and ensures that it remains focused and relevant. Additionally, a strong thesis statement can help to engage the reader and provide a sense of direction for the entire paper.

A thesis statement provides your reader with a clear guide as to what your thesis is about. Your thesis statement is your main point of view, focus, or argument on your specific thesis topic. Irrespective of whether you’re writing a persuasive essay or an analysis, it is critical to be able to state your thesis in a concise and compelling manner. So, how can you write a great thesis statement? 

A thesis statement is usually written near the beginning of an academic essay or thesis—specifically, at the end of the first paragraph or the introduction—and serves as a guide for readers. Simply put, the thesis statement gives the reader a preview of what they are going to read about. However, writing a thesis statement isn’t just important for your readers. The process of writing a thesis statement also helps you, the author, to distill your argument into just one or two sentences and organize your thoughts. This can be helpful as you go on to write the rest of your thesis.

Types of thesis statements

Just as there are different types of academic papers, there are also different types of thesis statements. Some common types of thesis statements you are likely to be asked to write as a student or young researcher are:

• Argumentative: Make a claim and support your claim with substantive evidence
• Analytical: Break an issue down and examine each aspect
• Informative/Expository/Explanatory: Explain or describe something

In an argumentative or persuasive thesis statement, you aim to persuade your audience to agree with your point of view. Such a thesis statement should not be confused with stating the topic or the thesis question. Instead, your thesis statement should clearly offer your interpretation or argument on the thesis topic.

Let’s imagine that the obesity epidemic in North America is your thesis topic. If you are writing an argumentative or persuasive thesis statement, you might propose a mitigation tactic to counter the rising rates of obesity like this:

Implementing a tax on processed foods with added sugar offers the dual benefits of raising revenue for the government and discouraging people from purchasing unhealthy food to counter rising obesity rates.

This thesis statement example presents an arguable position. An argumentative statement is one that is not obvious and that can be disputed.

What if you are asked to write an analytical thesis statement on the same topic? It might look something like this:

Obesity rates in North America have risen steadily and rapidly since the 1980s owing to multiple factors including federal corn subsidies, increased reliance on vehicles, and the rise of sedentary jobs.

This thesis statement example offers a clear roadmap to the reader by breaking down the causes (subsidies, reliance on vehicles, and sedentary jobs) of the issue (the obesity epidemic) and stating exactly what you will analyze and discuss.

Finally, an expository thesis statement on this topic might looks like this:

Obesity rates in North America have risen steadily since the 1980s, increasing healthcare costs and impacting quality of life for millions of people.

This thesis statement example offers a summary of some of the key impacts that the phenomenon (obesity) has caused and indicates to the reader what aspects of the issue you will be explaining.

What makes a good thesis statement?

If you find yourself stuck and unable to further specify your thesis statement, ask yourself questions to try to narrow things down.

As we saw above, there are different types of thesis statements. However, all good thesis statements have a few things in common.

A good thesis statement:

• Is clear and concise
• Makes a specific claim
• Offers supporting logic for the claim
• Avoids overly vague or subjective terms like “good” and “bad”
• Provides the reader with a roadmap for the paper

How can you distinguish a good thesis statement from a bad one? Let’s look at some examples to better understand the points mentioned above.

Bad Thesis Statement: Surrogacy should be banned in the UK .

This thesis statement is very broad and does not tell the reader why this argument is being made. Why should it be banned? Why in the UK specifically? What about other countries? Why should the reader care about this?

Good Thesis Statement : Despite passing numerous regulatory measures, surrogacy laws in the UK fail to protect economically and socially vulnerable women.

This thesis statement clearly makes a specific claim (surrogacy laws in the UK are ineffective), explains generally what is meant by that claim (they are ineffective at protecting vulnerable women), and indicates what direction the paper is going to go in (discussing why existing regulatory measures are insufficient). However, it is not quite clear what economically and socially vulnerable women are not being protected from. While we can make some guesses, it is better to be specific.

Excellent Thesis Statement : The proposed Surrogacy Bill of 2021 in the UK, like the Surrogacy Arrangements Act of 1985, fails to remedy the loopholes that allow surrogacy contracts, which place the majority of the cost and medical risk burden on the surrogate.

This thesis statement is very specific and offers facts surrounding the issue. It makes it clear that the problem lies in who assumes the cost and medical risk burden of a surrogacy and offers a possible explanation about why that problem exists.

Developing a thesis statement will take time. Don’t feel stressed out if you can’t think of a clear and specific thesis statement right away. If you find yourself stuck and unable to further specify your thesis statement, ask yourself questions to try to narrow things down. In the above example, you might begin by asking why surrogacy should be banned, followed by what regulatory measures exist and whether they are effective. If they are not effective, you should ask why and try to narrow down on a specific thing that makes surrogacy negative. Who do the laws protect, and who do they leave out? In this way, you can arrive at a clear and specific thesis statement.

How do I write a thesis statement?

It is important to note that while you will probably have at least a rough thesis statement before you begin writing your thesis, it can change as you write!

The process of writing a thesis statement begins with a question. Sometimes you will be given a thesis topic that has a question or suggests a particular angle on the topic already. Other times you will be allowed to choose your own thesis topic. Regardless, you can begin to develop your thesis statement by reading up on the thesis topic or question itself.

For example, if you are a student of Chinese literature and are asked to analyze the novel Wild Swans in relation to contemporary Chinese politics, you can start by reading Wild Swans and familiarizing yourself with the major issues in Chinese politics today. You can then identify several themes that interest you and focus your research further.

One technique that can help you draft a thesis statement is to first write a purpose statement. A purpose statement is a couple of sentences that state your thesis topic and explain how you will structure your thesis. However, a purpose statement does not include an actual argument or conclusion. Returning to our previous example of the obesity epidemic in North America, a purpose statement for an argumentative thesis could look something like this:

This study will examine some reasons why obesity rates have increased so much in North America since 1980, with a view to both individual behavior and changes in the environment.

I plan to examine changes in food availability and marketing, city infrastructure, dietary habits, and trends in exercise.

As you do more research and preliminary writing, you can refine your purpose statement into a thesis statement.

It is important to note that while you will probably have at least a rough thesis statement before you begin writing your thesis, it can change as you write ! If you come across new information during your literature review , or realize as you are writing that you want to change your argument, your thesis statement can change too. In fact, you should always revisit your thesis statement as you write, both as a reference for how to structure your thesis and to make sure that it supports your final thesis statement. Many academic writers revise and refine their thesis statement continually throughout the writing process.

Finalizing your thesis statement

Writing a thesis statement can be a challenge, but it is a key skill essential for any young researcher to be successful.

To finalize your thesis statement, you will need to ensure that it meets the following criteria for a strong thesis statement.

• Does the thesis take a clear and specific position on the topic?

Make sure your thesis statement isn’t simply a vague statement about a broad topic, and avoid words that imply subjective value judgements. “Zoos maintain biodiversity” is not a strong thesis statement. “Zoos play an important role in species and biodiversity conservation as the destruction of the world’s natural habitats increases” is much more specific and clearer.

• Does your thesis stimulate or merit discussion?

Make sure your thesis statement isn’t just a simple fact or observation. “The hanbok is back in fashion” is not a compelling thesis statement. There is nothing to discuss because this statement does not argue a particular position or offer an interpretation of an issue. It is merely a factual observation. “The renewed popularity of the hanbok in Korea can be attributed to its use in K-pop videos and a nostalgia for traditional values” is a much stronger thesis statement because it invites debate and disagreement .

• Does your thesis statement express one key idea?

While your thesis statement can incorporate a couple of aspects of an idea, it should make one clear and fundamental argument. “Social media provides companies and brands with an effective marketing channel, but it can also be difficult for older people to use” is a thesis statement that appears to be trying to talk about two different and unrelated ideas. While the topic is social media throughout, it’s not clear to the reader if your thesis is about the difficulty that the older people have using social media, or whether it is about the role social media plays in corporate marketing, or if there is some sort of relationship between these ideas.

Writing a thesis statement can be a challenge, but it is a key skill essential for any young researcher to be successful. As you master this skill you will find yourself writing stronger and better papers with increased ease. Check out our site for more tips on how to write a good thesis/dissertation, where to find the best thesis editing services , and more about thesis editing and proofreading services.

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To formulate your thesis statement, pursue the following steps:

Determine what kind of thesis you are writing

Do some preliminary research on the thesis topic

Formulate a purpose statement (stating the topic + tentative thesis structure)

Ask yourself questions as you write to refine your ideas

Revise your thesis statement as you write, if necessary

To make sure your thesis statement is strong, ask yourself:

Is the thesis statement an obvious fact?

Can someone argue with this thesis statement?

Is it clear why this thesis topic is important?

Is this thesis statement specific?

Does this thesis statement include vague or subjective terms like “good” or “bad”?

What makes a thesis statement strong? +

• A strong thesis statement is clear and concise
• It makes a specific claim
• It offers supporting logic for the claim
• It avoids overly vague or subjective terms like “good” and “bad”
• It provides the reader with a roadmap for the paper

What should I avoid when writing a thesis statement? +

• A thesis statement should not be overly broad
• A thesis statement should not merely state a fact or observation
• A thesis statement should not express many unrelated ideas

Princess Kate announces she is undergoing treatment for cancer

LONDON — Kate, the Princess of Wales , announced Friday that she was diagnosed with cancer and is undergoing chemotherapy , breaking her silence after weeks of widespread speculation over her health.

The 42-year-old wife of  Prince William , Britain’s future king, was hospitalized for almost two weeks at the private London Clinic after having major abdominal surgery in January.

It was thought that her condition was noncancerous and that the surgery had been successful, Kate said Friday in a rare video message. "However," she said, "tests after the operation found cancer had been present.”

Kate said that she was now undergoing “a course of preventative chemotherapy” on the advice of her medical team. She did not specify what type of cancer she has or at what stage it was found, and Kensington Palace, the couple’s royal household, has not said why the operation was necessary.

"I am now in the early stages of that treatment," Kate said in the statement, released by the palace. She thanked the public for their support but also asked for "time, space and privacy" while completing her treatment.

Follow live updates on Princess Kate's health announcement

"This, of course, came as a huge shock, and William and I have been doing everything we can to process and manage this privately for the sake of our young family. As you can imagine, this has taken time. It has taken me time to recover from major surgery in order to start my treatment," Kate said.

"But, most importantly, it has taken us time to explain everything to George, Charlotte and Louis in a way that is appropriate for them, and to reassure them that I am going to be OK," she added, referring to their three young children.

Kate also had a message for those affected by the disease.

"At this time, I am also thinking of all those whose lives have been affected by cancer," she said. "For everyone facing this disease, in whatever form, please do not lose faith or hope. You are not alone." 

At the time of Kate's operation, William postponed a number of engagements as he juggled being with his wife and looking after their children.

King Charles III was himself diagnosed with cancer last month and has been undergoing treatment. Buckingham Palace has not specified the type of cancer or at what stage it was found, though the announcement marked a break with royal history that has often seen ailments hidden from the public.

Kate's surgery and withdrawal from the public eye led to commentary and conspiracy theories that spread across social media. On Friday, Kate asked for privacy.

"I am well and getting stronger every day by focusing on the things that will help me heal; in my mind, body and spirits. Having William by my side is a great source of comfort and reassurance too. As is the love, support and kindness that has been shown by so many of you. It means so much to us both," she said.

"We hope that you will understand that, as a family, we now need some time, space and privacy while I complete my treatment," she said. "My work has always brought me a deep sense of joy and I look forward to being back when I am able, but for now I must focus on making a full recovery."

The White House issued a message of support shortly after the news was announced.

“Our thoughts are with the Duchess of Cambridge and her family members and friends during this incredibly difficult time,” White House press secretary Karine Jean-Pierre said.

British Prime Minister Rishi Sunak said his "thoughts are with the Princess of Wales, Prince of Wales, the Royal Family and in particular her three children at this difficult time," he wrote in a post on X .

"I know I speak for the whole country in wishing her a full and speedy recovery and look forward to seeing her back in action when she’s ready," he added.

King Charles said he was “so proud of Catherine for her courage in speaking as she did,” according to a statement issued by Buckingham Palace.

The king had “remained in the closest contact with his beloved daughter-in-law throughout the past weeks,” following their time in hospital together, a palace spokesperson said.

Prince Harry and Meghan, the Duke and Duchess of Sussex, offered their support for Princess Kate in a statement Friday.

"We wish health and healing for Kate and the family, and hope they are able to do so privately and in peace," the pair said.

Kate's absence from public view and the ensuing media frenzy have fueled a public reckoning with how the royal family balances its desire for privacy with transparency and accountability in the modern world.

The royal rumor mill was sent into overdrive when a family photo of Kate and her children — released to mark Mother's Day in the United Kingdom and in an apparent bid to end the rumors — was pulled by photo agencies because it had been digitally altered.

As uproar grew, Kensington Palace said that Kate herself had edited the photo and apologized "for any confusion."

She was seen in grainy video a week later, after being spotted out shopping with William in Windsor, in what royal experts said was likely a deliberate effort to put an end to the saga.

But it then emerged that Britain's data watchdog was investigating a report that staff members at the hospital where she underwent surgery had tried to access her medical records.

Kate regularly polls as one of the most popular members of the royal family.

The former Kate Middleton grew up in Berkshire, an affluent county west of London. She was raised by entrepreneur parents and attended the exclusive Marlborough College. Kate then studied art history at the University of St. Andrews in Scotland, where she met William in 2001.

Their relationship came to public attention when they were photographed together while skiing in Switzerland, and despite briefly splitting the couple were married in 2011.

Max Burman is deputy editor in the London bureau of NBC News Digital.