good vs bad thesis statements

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Developing Strong Thesis Statements

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The thesis statement or main claim must be debatable

An argumentative or persuasive piece of writing must begin with a debatable thesis or claim. In other words, the thesis must be something that people could reasonably have differing opinions on. If your thesis is something that is generally agreed upon or accepted as fact then there is no reason to try to persuade people.

Example of a non-debatable thesis statement:

This thesis statement is not debatable. First, the word pollution implies that something is bad or negative in some way. Furthermore, all studies agree that pollution is a problem; they simply disagree on the impact it will have or the scope of the problem. No one could reasonably argue that pollution is unambiguously good.

Example of a debatable thesis statement:

This is an example of a debatable thesis because reasonable people could disagree with it. Some people might think that this is how we should spend the nation's money. Others might feel that we should be spending more money on education. Still others could argue that corporations, not the government, should be paying to limit pollution.

Another example of a debatable thesis statement:

In this example there is also room for disagreement between rational individuals. Some citizens might think focusing on recycling programs rather than private automobiles is the most effective strategy.

The thesis needs to be narrow

Although the scope of your paper might seem overwhelming at the start, generally the narrower the thesis the more effective your argument will be. Your thesis or claim must be supported by evidence. The broader your claim is, the more evidence you will need to convince readers that your position is right.

Example of a thesis that is too broad:

There are several reasons this statement is too broad to argue. First, what is included in the category "drugs"? Is the author talking about illegal drug use, recreational drug use (which might include alcohol and cigarettes), or all uses of medication in general? Second, in what ways are drugs detrimental? Is drug use causing deaths (and is the author equating deaths from overdoses and deaths from drug related violence)? Is drug use changing the moral climate or causing the economy to decline? Finally, what does the author mean by "society"? Is the author referring only to America or to the global population? Does the author make any distinction between the effects on children and adults? There are just too many questions that the claim leaves open. The author could not cover all of the topics listed above, yet the generality of the claim leaves all of these possibilities open to debate.

Example of a narrow or focused thesis:

In this example the topic of drugs has been narrowed down to illegal drugs and the detriment has been narrowed down to gang violence. This is a much more manageable topic.

We could narrow each debatable thesis from the previous examples in the following way:

Narrowed debatable thesis 1:

This thesis narrows the scope of the argument by specifying not just the amount of money used but also how the money could actually help to control pollution.

Narrowed debatable thesis 2:

This thesis narrows the scope of the argument by specifying not just what the focus of a national anti-pollution campaign should be but also why this is the appropriate focus.

Qualifiers such as " typically ," " generally ," " usually ," or " on average " also help to limit the scope of your claim by allowing for the almost inevitable exception to the rule.

Types of claims

Claims typically fall into one of four categories. Thinking about how you want to approach your topic, or, in other words, what type of claim you want to make, is one way to focus your thesis on one particular aspect of your broader topic.

Claims of fact or definition: These claims argue about what the definition of something is or whether something is a settled fact. Example:

Claims of cause and effect: These claims argue that one person, thing, or event caused another thing or event to occur. Example:

Claims about value: These are claims made of what something is worth, whether we value it or not, how we would rate or categorize something. Example:

Claims about solutions or policies: These are claims that argue for or against a certain solution or policy approach to a problem. Example:

Which type of claim is right for your argument? Which type of thesis or claim you use for your argument will depend on your position and knowledge of the topic, your audience, and the context of your paper. You might want to think about where you imagine your audience to be on this topic and pinpoint where you think the biggest difference in viewpoints might be. Even if you start with one type of claim you probably will be using several within the paper. Regardless of the type of claim you choose to utilize it is key to identify the controversy or debate you are addressing and to define your position early on in the paper.

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On Thesis Statements

The thesis statement.

This is not an exhaustive list of bad thesis statements, but here're five kinds of problems I've seen most often. Notice that the last two, #4 and #5, are not necessarily incorrect or illegitimate thesis statements, but, rather, inappropriate for the purposes of this course. They may be useful forms for papers on different topics in other courses.

A thesis takes a position on an issue. It is different from a topic sentence in that a thesis statement is not neutral. It announces, in addition to the topic, the argument you want to make or the point you want to prove. This is your own opinion that you intend to back up. This is your reason and motivation for writing.

Bad Thesis 1

Bad Thesis 2 : This paper will consider the advantages and disadvantages of certain restrictions on free speech.

Better Thesis 1 : Stanley Fish's argument that free speech exists more as a political prize than as a legal reality ignores the fact that even as a political prize it still serves the social end of creating a general cultural atmosphere of tolerance that may ultimately promote free speech in our nation just as effectively as any binding law.

Better Thesis 2 : Even though there may be considerable advantages to restricting hate speech, the possibility of chilling open dialogue on crucial racial issues is too great and too high a price to pay.

A thesis should be as specific as possible, and it should be tailored to reflect the scope of the paper. It is not possible, for instance, to write about the history of English literature in a 5 page paper. In addition to choosing simply a smaller topic, strategies to narrow a thesis include specifying a method or perspective or delineating certain limits.

Bad Thesis 2 : The government has the right to limit free speech.

Better Thesis 1 : There should be no restrictions on the 1st amendment if those restrictions are intended merely to protect individuals from unspecified or otherwise unquantifiable or unverifiable "emotional distress."

Better Thesis 2 : The government has the right to limit free speech in cases of overtly racist or sexist language because our failure to address such abuses would effectively suggest that our society condones such ignorant and hateful views.

A thesis must be arguable. And in order for it to be arguable, it must present a view that someone might reasonably contest. Sometimes a thesis ultimately says, "we should be good," or "bad things are bad." Such thesis statements are tautological or so universally accepted that there is no need to prove the point.

Bad Thesis 2 : There are always alternatives to using racist speech.

Better Thesis 1 : If we can accept that emotional injuries can be just as painful as physical ones we should limit speech that may hurt people's feelings in ways similar to the way we limit speech that may lead directly to bodily harm.

Better Thesis 2 : The "fighting words" exception to free speech is not legitimate because it wrongly considers speech as an action.

A good argumentative thesis provides not only a position on an issue, but also suggests the structure of the paper. The thesis should allow the reader to imagine and anticipate the flow of the paper, in which a sequence of points logically prove the essay's main assertion. A list essay provides no such structure, so that different points and paragraphs appear arbitrary with no logical connection to one another.

Bad Thesis 2 : None of the arguments in favor of regulating pornography are persuasive.

Better Thesis 1 : Among the many reasons we need to limit hate speech the most compelling ones all refer to our history of discrimination and prejudice, and it is, ultimately, for the purpose of trying to repair our troubled racial society that we need hate speech legislation.

Better Thesis 2 : None of the arguments in favor of regulating pornography are persuasive because they all base their points on the unverifiable and questionable assumption that the producers of pornography necessarily harbor ill will specifically to women.

In an other course this would not be at all unacceptable, and, in fact, possibly even desirable. But in this kind of course, a thesis statement that makes a factual claim that can be verified only with scientific, sociological, psychological or other kind of experimental evidence is not appropriate. You need to construct a thesis that you are prepared to prove using the tools you have available, without having to consult the world's leading expert on the issue to provide you with a definitive judgment.

Bad Thesis 2 : Hate speech can cause emotional pain and suffering in victims just as intense as physical battery.

Better Thesis 1 : Whether or not the cultural concept of free speech bears any relation to the reality of 1st amendment legislation and jurisprudence, its continuing social function as a promoter of tolerance and intellectual exchange trumps the call for politicization (according to Fish's agenda) of the term.

Better Thesis 2 : The various arguments against the regulation of hate speech depend on the unspoken and unexamined assumption that emotional pain is either trivial.

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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Rams Write: Thesis Statements

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Introduction

A good thesis statement should:.

• Convey the topic and opinion of the essay, as well as the subjects and examples that will be discussed (see Jerz's Topic, Opinion, Blueprint model below)
• Be approximately 1-2 sentences long, and included in the essay's introductory paragraph

Meme Generator

What is a Blueprint?

A blueprint is simply a set of subtopics that you plan to discuss throughout your essay, likely the subjects of each individual paragraph. 

Here's a tip!

Although we start writing with a general idea of what our thesis will be, it's always helpful to draft the entire essay and then go back and revise your thesis to reflect how your argument really progressed. Revising your thesis after writing a first draft also helps you with your final revision. You will better identify "fluff," places where you go off-topic, as well as ideas that may need further clarification. 

How To Write a Killer Thesis Statement

Bad vs. Good Thesis Statements

Bad thesis statements have:.

• Nothing to argue
• No hint about where they’re headed
• No focus, they’re too broad
• A long list of information

Good Thesis Statements Have:

• A clear point of view
• A detailed blueprint about where the essay is headed
• Clear and concise form

Ways To Improve

Your thesis takes a position that others might challenge

• Your thesis statement is specific

If the reader can ask the questions, "So What?" "How?" or "Why?", then you might need to clarify your thesis.

Example Thesis Statements

In his work “Plagiarism is Not a Big Moral Deal,” Fish discusses how plagiarism should be treated in an academic atmosphere, due to the fact that it is often rooted in misunderstanding, a lack of originality, and the exclusivity of academic circles.

This thesis has a topic and blueprint, but is missing an opinion.

In his work, “Plagiarism Is Not a Big Moral Deal,” Fish discusses how plagiarism should not be treated as a moral or philosophical issue, due to the fact that it is often rooted in misunderstanding of the complex rules, a lack of originality as a concept, and the exclusivity of academic circles.

Explanation

This thesis is better because it includes all of the following:

Topic : A discussion of how plagiarism should be treated in an academic atmosphere.

Opinion : Plagiarism is not an issue of morality but rather professionalism.

Blueprint : He argues that plagiarism is often caused by misunderstanding without malicious intent, lack of originality as a concept, and overly complicated rules and systems taught to a few in academic circles. 

Common Mistakes

Common mistakes include:.

1. Lack of focus and specificity 

2. Jargon (word choice that is exclusive/ hard to understand)

3. Treating your thesis statement like a topic sentence

4. Not adequately representing your claim

Difference Between a Thesis and a Topic Sentence

Thesis statements are 1-2 sentences that assert your opinion and what will be said throughout the entire essay . 

Topic sentences introduce the discussion to follow in a specific paragrap h .  Each must be general enough to express the paragraph’s overall subject, but also specific enough that the reader knows where the paragraph is going. For more information, see Rams Write: Topic Sentences .

Thesis Sentence vs. Topic

Sparknotes: "Thesis Machine Strategy"

The “thesis machine”.

This is a technique my first writing professor taught me. It’s a reliable jumping off point for when you’re just trying to get a thesis down. The pattern’s simple—here’s an example:

Topic: Hufflepuffs

Topic + Position: Hufflepuffs make the best friends

Topic + Position + Rationale  (Think of this as the “because” step): Hufflepuffs make the best friends because they are accepting and loyal.

Topic + Position + Rationale + Qualification  (The “although” step): Although they are often overlooked and considered oddballs, Hufflepuffs make the best friends because of their deep-seated values of loyalty, dedication, and acceptance, all crucial traits in any friendship.

General Guideline for Theses

Jerz's Literary Weblog  offers general guidelines for brainstorming your thesis.

This page was created by/ MLA Citations

Kirsten LaCroix, Framingham State U, Class of 2022

Bri Hibbert, Framingham State U, Class of 2022

Spring 2019

Julia Coolidge, Framingham State U, Class of 2022 

Sarah Wheeler, Framingham State U, Class of 2021

Works Cited

"Developing Your Thesis."  Odegaard Writing and Research Center,  2018,  depts.washington.edu/owrc/Handouts/Developing%20Your%20Thesis.pdf .

Harrogate, Kurt. "How to Write a Killer Thesis Statement." Sparknotes Blog , 17 March 2017,  www.sparknotes.com/blog/2017/03/17/how-to-write-a-killer-thesis-statement/ . 

"How to Write a Killer Thesis Statement by Shmoop."  Youtube,  uploaded by Shmoop, 6 September 2013,  www.youtube.com/watch?v=8wxE8R_x5I0 . 

Jerz, Dennis G. and Jordan, Nicci. "Blueprinting: Using the Thesis Paragraph to Plan Your Essay."  Jerz’s Literacy Weblog,  10 June 2015,  jerz.setonhill.edu/writing/academic1/blueprinting-using-the-thesis-paragraph-to-plan-your-essay/ . 

Meme Generator: Create Your Own Meme.  Meme Generator, 2019,  memegenerator.net . 

"Thesis Statements." The Writing Center, University of North Carolina at Chapel Hill,  2018,  writingcenter.unc.edu/tips-and-tools/thesis-statements/ .

"Thesis Statement vs. Topic Sentence by Shmoop."  YouTube,  uploaded by Shmoop, 16 July 2013,  www.youtube.com/watch?time_continue=236&v=Nx2-PcBzZjo . 

"Writing Tips: Thesis Statements."  University of Illinois at Urbana-Champaign Center for Writing Students,  2013,  www.cws.illinois.edu/workshop/writers/tips/thesis/ .

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Writing Studio

Refining thesis statements, what makes for an effective thesis.

In an effort to make our handouts more accessible, we have begun converting our PDF handouts to web pages. Download this page as a PDF: Refining Thesis Statements Return to Writing Studio Handouts

An effective thesis should be argumentative and controversial (i.e., if you could make a plausible case against your thesis, it is probably an argument), something not immediately obvious which you can persuade a reader to believe through the evidence in the body of your paper.

A strong thesis statement answers a specific question and takes a distinct position on the topic, is focused, and allows the reader to anticipate the organization of the argument to follow.

A weak thesis statement is vague (identifies a topic but does not specify an argument), offers plot summary or is a statement of fact, is un-provable, or does not give the reader a sense of why the argument is important.

Look over the two example thesis statements below. Consider and name how each of the progressively refined versions matches the criteria offered above.

Example Thesis A

Version 1: Marge Simpson is important to the plot of The Simpsons.

Version 2:  Marge Simpson is important to The Simpsons because she fulfills a significant family role as a mother and housewife.

Version 3:  Marge Simpson is important to The Simpsons because she fulfills a significant family role as a teacher and caregiver to her husband and children.

Version 4:  While Marge Simpson may be a model caregiver for her family, she is a different sort of model for her audience.

Version 5:  Despite her role as a seemingly submissive housewife and mother, Marge Simpson comes to function for the audience of The Simpsons as a subversive force against “middle class” values.

Example Thesis B

Version 1:  Eating disorders are a significant problem among college-aged students.

Version 2:  Eating disorders are a significant problem among college-aged men because they negatively affect academic performance, socializing, and overall psychological well-being.

Version 3:  Eating disorders among college-aged men are overshadowed by a focus on eating disorders among college-aged women.

Version 4:  Eating disorders among college-aged men are overshadowed by a focus on eating disorders among college-aged women; people don’t notice this because an eating disorder is typically considered a women’s disease and is stigmatized as such.

Version 5: Lack of attention to eating disorders among college-aged men not only leaves this group of students untreated, but also exacerbates feelings of isolation associated with this disease.

This handout was originally produced by Jane Wanninger, Graduate Student, Department of English, Vanderbilt University

Last revised: 07/2009 | Adapted for web delivery: 04/2021

In order to access certain content on this page, you may need to download Adobe Acrobat Reader or an equivalent PDF viewer software.

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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How to write a thesis statement, what is a thesis statement.

Almost all of us—even if we don’t do it consciously—look early in an essay for a one- or two-sentence condensation of the argument or analysis that is to follow. We refer to that condensation as a thesis statement.

Why Should Your Essay Contain a Thesis Statement?

• to test your ideas by distilling them into a sentence or two
• to better organize and develop your argument
• to provide your reader with a “guide” to your argument

In general, your thesis statement will accomplish these goals if you think of the thesis as the answer to the question your paper explores.

How Can You Write a Good Thesis Statement?

Here are some helpful hints to get you started. You can either scroll down or select a link to a specific topic.

How to Generate a Thesis Statement if the Topic is Assigned How to Generate a Thesis Statement if the Topic is not Assigned How to Tell a Strong Thesis Statement from a Weak One

How to Generate a Thesis Statement if the Topic is Assigned

Almost all assignments, no matter how complicated, can be reduced to a single question. Your first step, then, is to distill the assignment into a specific question. For example, if your assignment is, “Write a report to the local school board explaining the potential benefits of using computers in a fourth-grade class,” turn the request into a question like, “What are the potential benefits of using computers in a fourth-grade class?” After you’ve chosen the question your essay will answer, compose one or two complete sentences answering that question.

Q: “What are the potential benefits of using computers in a fourth-grade class?” A: “The potential benefits of using computers in a fourth-grade class are . . .”

A: “Using computers in a fourth-grade class promises to improve . . .”

The answer to the question is the thesis statement for the essay.

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How to Generate a Thesis Statement if the Topic is not Assigned

Even if your assignment doesn’t ask a specific question, your thesis statement still needs to answer a question about the issue you’d like to explore. In this situation, your job is to figure out what question you’d like to write about.

A good thesis statement will usually include the following four attributes:

• take on a subject upon which reasonable people could disagree
• deal with a subject that can be adequately treated given the nature of the assignment
• express one main idea
• assert your conclusions about a subject

Let’s see how to generate a thesis statement for a social policy paper.

Brainstorm the topic . Let’s say that your class focuses upon the problems posed by changes in the dietary habits of Americans. You find that you are interested in the amount of sugar Americans consume.

You start out with a thesis statement like this:

Sugar consumption.

This fragment isn’t a thesis statement. Instead, it simply indicates a general subject. Furthermore, your reader doesn’t know what you want to say about sugar consumption.

Narrow the topic . Your readings about the topic, however, have led you to the conclusion that elementary school children are consuming far more sugar than is healthy.

You change your thesis to look like this:

Reducing sugar consumption by elementary school children.

This fragment not only announces your subject, but it focuses on one segment of the population: elementary school children. Furthermore, it raises a subject upon which reasonable people could disagree, because while most people might agree that children consume more sugar than they used to, not everyone would agree on what should be done or who should do it. You should note that this fragment is not a thesis statement because your reader doesn’t know your conclusions on the topic.

Take a position on the topic. After reflecting on the topic a little while longer, you decide that what you really want to say about this topic is that something should be done to reduce the amount of sugar these children consume.

You revise your thesis statement to look like this:

More attention should be paid to the food and beverage choices available to elementary school children.

This statement asserts your position, but the terms more attention and food and beverage choices are vague.

Use specific language . You decide to explain what you mean about food and beverage choices , so you write:

Experts estimate that half of elementary school children consume nine times the recommended daily allowance of sugar.

This statement is specific, but it isn’t a thesis. It merely reports a statistic instead of making an assertion.

Make an assertion based on clearly stated support. You finally revise your thesis statement one more time to look like this:

Because half of all American elementary school children consume nine times the recommended daily allowance of sugar, schools should be required to replace the beverages in soda machines with healthy alternatives.

Notice how the thesis answers the question, “What should be done to reduce sugar consumption by children, and who should do it?” When you started thinking about the paper, you may not have had a specific question in mind, but as you became more involved in the topic, your ideas became more specific. Your thesis changed to reflect your new insights.

How to Tell a Strong Thesis Statement from a Weak One

1. a strong thesis statement takes some sort of stand..

Remember that your thesis needs to show your conclusions about a subject. For example, if you are writing a paper for a class on fitness, you might be asked to choose a popular weight-loss product to evaluate. Here are two thesis statements:

There are some negative and positive aspects to the Banana Herb Tea Supplement.

This is a weak thesis statement. First, it fails to take a stand. Second, the phrase negative and positive aspects is vague.

Because Banana Herb Tea Supplement promotes rapid weight loss that results in the loss of muscle and lean body mass, it poses a potential danger to customers.

This is a strong thesis because it takes a stand, and because it's specific.

2. A strong thesis statement justifies discussion.

Your thesis should indicate the point of the discussion. If your assignment is to write a paper on kinship systems, using your own family as an example, you might come up with either of these two thesis statements:

My family is an extended family.

This is a weak thesis because it merely states an observation. Your reader won’t be able to tell the point of the statement, and will probably stop reading.

While most American families would view consanguineal marriage as a threat to the nuclear family structure, many Iranian families, like my own, believe that these marriages help reinforce kinship ties in an extended family.

This is a strong thesis because it shows how your experience contradicts a widely-accepted view. A good strategy for creating a strong thesis is to show that the topic is controversial. Readers will be interested in reading the rest of the essay to see how you support your point.

3. A strong thesis statement expresses one main idea.

Readers need to be able to see that your paper has one main point. If your thesis statement expresses more than one idea, then you might confuse your readers about the subject of your paper. For example:

Companies need to exploit the marketing potential of the Internet, and Web pages can provide both advertising and customer support.

This is a weak thesis statement because the reader can’t decide whether the paper is about marketing on the Internet or Web pages. To revise the thesis, the relationship between the two ideas needs to become more clear. One way to revise the thesis would be to write:

Because the Internet is filled with tremendous marketing potential, companies should exploit this potential by using Web pages that offer both advertising and customer support.

This is a strong thesis because it shows that the two ideas are related. Hint: a great many clear and engaging thesis statements contain words like because , since , so , although , unless , and however .

4. A strong thesis statement is specific.

A thesis statement should show exactly what your paper will be about, and will help you keep your paper to a manageable topic. For example, if you're writing a seven-to-ten page paper on hunger, you might say:

World hunger has many causes and effects.

This is a weak thesis statement for two major reasons. First, world hunger can’t be discussed thoroughly in seven to ten pages. Second, many causes and effects is vague. You should be able to identify specific causes and effects. A revised thesis might look like this:

Hunger persists in Glandelinia because jobs are scarce and farming in the infertile soil is rarely profitable.

This is a strong thesis statement because it narrows the subject to a more specific and manageable topic, and it also identifies the specific causes for the existence of hunger.

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Thesis and Purpose Statements

Use the guidelines below to learn the differences between thesis and purpose statements.

In the first stages of writing, thesis or purpose statements are usually rough or ill-formed and are useful primarily as planning tools.

A thesis statement or purpose statement will emerge as you think and write about a topic. The statement can be restricted or clarified and eventually worked into an introduction.

As you revise your paper, try to phrase your thesis or purpose statement in a precise way so that it matches the content and organization of your paper.

Thesis statements

A thesis statement is a sentence that makes an assertion about a topic and predicts how the topic will be developed. It does not simply announce a topic: it says something about the topic.

Good: X has made a significant impact on the teenage population due to its . . . Bad: In this paper, I will discuss X.

A thesis statement makes a promise to the reader about the scope, purpose, and direction of the paper. It summarizes the conclusions that the writer has reached about the topic.

A thesis statement is generally located near the end of the introduction. Sometimes in a long paper, the thesis will be expressed in several sentences or an entire paragraph.

A thesis statement is focused and specific enough to be proven within the boundaries of the paper. Key words (nouns and verbs) should be specific, accurate, and indicative of the range of research, thrust of the argument or analysis, and the organization of supporting information.

Purpose statements

A purpose statement announces the purpose, scope, and direction of the paper. It tells the reader what to expect in a paper and what the specific focus will be.

Common beginnings include:

“This paper examines . . .,” “The aim of this paper is to . . .,” and “The purpose of this essay is to . . .”

A purpose statement makes a promise to the reader about the development of the argument but does not preview the particular conclusions that the writer has drawn.

A purpose statement usually appears toward the end of the introduction. The purpose statement may be expressed in several sentences or even an entire paragraph.

A purpose statement is specific enough to satisfy the requirements of the assignment. Purpose statements are common in research papers in some academic disciplines, while in other disciplines they are considered too blunt or direct. If you are unsure about using a purpose statement, ask your instructor.

This paper will examine the ecological destruction of the Sahel preceding the drought and the causes of this disintegration of the land. The focus will be on the economic, political, and social relationships which brought about the environmental problems in the Sahel.

Sample purpose and thesis statements

The following example combines a purpose statement and a thesis statement (bold).

The goal of this paper is to examine the effects of Chile’s agrarian reform on the lives of rural peasants. The nature of the topic dictates the use of both a chronological and a comparative analysis of peasant lives at various points during the reform period. . . The Chilean reform example provides evidence that land distribution is an essential component of both the improvement of peasant conditions and the development of a democratic society. More extensive and enduring reforms would likely have allowed Chile the opportunity to further expand these horizons.

For more tips about writing thesis statements, take a look at our new handout on Developing a Thesis Statement.

Writing Process and Structure

This is an accordion element with a series of buttons that open and close related content panels.

Getting Started with Your Paper

Interpreting Writing Assignments from Your Courses

Generating Ideas for Your Paper

Creating an Argument

Thesis vs. Purpose Statements

Developing a Thesis Statement

Architecture of Arguments

Working with Sources

Quoting and Paraphrasing Sources

Using Literary Quotations

Citing Sources in Your Paper

Drafting 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

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In essays and research papers, your introduction should contain a thesis statement. Your thesis will express the main idea of your paper and share your position on the topic. A thesis statement will drive your essay, and this helps keep your points on track. Not all thesis statements have the same impact, however. Knowing what makes a good thesis and how to form one will help you write an effective paper.

General vs. Specific

A good thesis statement will not contain specific details, but it should not feel too general either. Finding a balance may seem tricky, but with some refining, your thesis will come together. In looking at a general thesis statement, you need to give the reader enough information to see the potential argument on the topic. For example, you do not want to say, “People go hungry without food to eat.” This is not a thesis, but rather a general fact that does not help the reader understand the position you will take on the topic. When looking at specifics, you need to make an argument for your topic without giving the supporting arguments or details that you will use in the body of your paragraph. An overly specific thesis may give data or other research instead of giving your take on the subject.

You need to make sure the reader understands your thesis statement and which side of the argument you will prove in the body of your essay. If you vacillate between one side of the argument and the other in your thesis, this will confuse your reader. Make clear, well-thought out statements that identify your perspective on the topic. To get to that level of clarity, particularly if you can see both sides of the argument, you may need to do more research. Another option might include taking a stand on the side of the topic you agree with most but include the information for the other viewpoints as a part of your paper. Whatever you choose, make sure your reader can identify both the information and the point you will prove.

If you struggle with starting a thesis statement, you may want to begin by answering two questions and then build your thesis from this. First, write down a single sentence that states the topic of your paper. Second, write down what the body of your paper will prove or argue. Finally, combine those statements and revise until the sentence not only makes sense but gives a strong position for your paper.

When considering a thesis statement, you may want to evaluate its strength. Ask yourself if someone could argue an opposing viewpoint based on your thesis. This may help you easily identify whether you have the basis for a good thesis statement.

Seeing examples of both good and bad thesis statements may help you craft a strong statement. As a bad example, you might see, “I will show the negative effects of not studying for a test.” This statement does not give the reader information or share the writer’s position on the topic. A better example may look like this: “Poor study habits result in lower grade point averages, and this can lead to fewer academic opportunities and career options for students.” In this example, you could argue an alternate point of view. As well, the reader knows your position on the topic, and she will know what to expect throughout your essay.

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Kate Beck started writing for online publications in 2005. She worked as a certified ophthalmic technician for 10 years before returning to school to earn a Masters of Fine Arts degree in writing. Beck is currently putting the finishing touches on a novel.

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Top 6 Most Common Thesis Statement Mistakes

Writing a well-done thesis statement can often feel easier said than done. After all, this one sentence sets the tone for your entire paper and can make or break your assignment. To help with your next essay , we've put together a list of the most common thesis statement mistakes and tips to help you avoid them.

What is a Thesis Statement?

Just in case you need a refresher, here's a quick review:

A thesis statement, as defined by Dictionary.com , is: “a short statement, usually one sentence, that summarizes the main point or claim of an essay, research paper, etc., and is developed, supported, and explained in the text by means of examples and evidence.”

A thesis statement introduces your essay's main idea in the first paragraph of your assignment. It is the guiding factor that controls and organizes all other thoughts in your research paper.

How Do I Write a Thesis Statement?

It can take a long time to master the art of crafting a thesis statement. Luckily, there are some tools to help.

A good place to start is by checking out a thesis statement template. This will help ensure that you're including everything you're supposed to.

Here's a quick example:

You can also use an online thesis generator to organize your main idea and evidence. You enter the basic information about your argument and topic, and it helps you create a solid thesis statement.

It also helps to take time to explore some thesis statement examples (both good and bad) to clarify how to fix some of these common mistakes.

What are the Most Common Thesis Statement Mistakes?

Once you know the basics of how to write a thesis statement, there are certain mistakes to watch out for. Learning how to identify these common errors and understanding how to avoid them will help make your thesis statement a strong one.

1. The Statement is Unclear

Your reader needs to immediately understand your purpose. If it is vague or unclear, you've lost your audience from the start. Narrow down your focus and use straightforward language to state your main idea .

• Example thesis: The food in America is gross, unhealthy, and expensive, so we probably shouldn't be eating any of it.
• Improved thesis: Due to the obesity crisis in America, lawmakers should consider creating a plan to lower the prices of healthier foods so that everyone can afford to eat high-quality foods.

2. The Statement is Too Complicated

Making a statement that is too long or wordy generally confuses your reader. It also weakens the argument you are trying to make.

• Example thesis: Many athletes, such as those who play in colleges or for organizations like the NCAA, do not make any money, which is devastating because they deserve to make a substantial amount of money due to their efforts on the court and on the field and due to the fact that colleges earn a profit off of the sports that these athletes play.
• Improved thesis: NCAA athletes should receive compensation for their sports in college because they are generating revenue for universities and risking injury for themselves.

3. The Statement is Too Basic or Obvious

As you move up through school, your writing should mature as well. A successful thesis statement from junior high is not necessarily a strong thesis statement in high school or college. While being very basic and obvious in your younger writing might be fine, writing as an older student should be more precise and refined.

• Example thesis: In this paper, I will be discussing the importance of eating a healthy breakfast every day.
• Improved thesis: Eating a healthy breakfast is important to help your body function at its optimal level throughout the day.

4. The Statement has No Real Purpose

Your readers need to care about your topic in some way. Is this information helpful? Beneficial? Worth investigating? If not, choose a heartier topic that's worth discussing.

• Example thesis: I think these blue socks are the prettiest ones in the drawer.
• Improved thesis: Students should be allowed to express themselves as individuals by choosing any type of socks and shoes they want to wear to school.

5. The Statement Uses Poor Language Choices

Slang, abbreviations, and poor spelling have no place in a clear thesis statement. Use professional language to make your point.

• Example thesis: The best comedians should make you LOL 24-7.
• Improved thesis: To be a quality comedian, you must develop your craft in a way that inspires laughter and smiles at every performance.

6. The Statement Lacks Connection to the Rest of the Essay.

Even if you have a decent thesis statement, it will mean nothing if the rest of the essay strays from your main idea. Always connect your thoughts back to the thesis statement . The paper needs to be coherent and stay on target with your original argument.

Crafting a thorough thesis statement can feel like a difficult task, but it doesn't have to. If you are mindful of common mistakes that students make, you can avoid these errors and create a thesis statement that is clear, engaging, and purposeful.

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How to Write a Research Hypothesis: Good & Bad Examples

What is a research hypothesis?

A research hypothesis is an attempt at explaining a phenomenon or the relationships between phenomena/variables in the real world. Hypotheses are sometimes called “educated guesses”, but they are in fact (or let’s say they should be) based on previous observations, existing theories, scientific evidence, and logic. A research hypothesis is also not a prediction—rather, predictions are ( should be) based on clearly formulated hypotheses. For example, “We tested the hypothesis that KLF2 knockout mice would show deficiencies in heart development” is an assumption or prediction, not a hypothesis. 

The research hypothesis at the basis of this prediction is “the product of the KLF2 gene is involved in the development of the cardiovascular system in mice”—and this hypothesis is probably (hopefully) based on a clear observation, such as that mice with low levels of Kruppel-like factor 2 (which KLF2 codes for) seem to have heart problems. From this hypothesis, you can derive the idea that a mouse in which this particular gene does not function cannot develop a normal cardiovascular system, and then make the prediction that we started with. 

What is the difference between a hypothesis and a prediction?

You might think that these are very subtle differences, and you will certainly come across many publications that do not contain an actual hypothesis or do not make these distinctions correctly. But considering that the formulation and testing of hypotheses is an integral part of the scientific method, it is good to be aware of the concepts underlying this approach. The two hallmarks of a scientific hypothesis are falsifiability (an evaluation standard that was introduced by the philosopher of science Karl Popper in 1934) and testability —if you cannot use experiments or data to decide whether an idea is true or false, then it is not a hypothesis (or at least a very bad one).

So, in a nutshell, you (1) look at existing evidence/theories, (2) come up with a hypothesis, (3) make a prediction that allows you to (4) design an experiment or data analysis to test it, and (5) come to a conclusion. Of course, not all studies have hypotheses (there is also exploratory or hypothesis-generating research), and you do not necessarily have to state your hypothesis as such in your paper. 

But for the sake of understanding the principles of the scientific method, let’s first take a closer look at the different types of hypotheses that research articles refer to and then give you a step-by-step guide for how to formulate a strong hypothesis for your own paper.

Types of Research Hypotheses

Hypotheses can be simple , which means they describe the relationship between one single independent variable (the one you observe variations in or plan to manipulate) and one single dependent variable (the one you expect to be affected by the variations/manipulation). If there are more variables on either side, you are dealing with a complex hypothesis. You can also distinguish hypotheses according to the kind of relationship between the variables you are interested in (e.g., causal or associative ). But apart from these variations, we are usually interested in what is called the “alternative hypothesis” and, in contrast to that, the “null hypothesis”. If you think these two should be listed the other way round, then you are right, logically speaking—the alternative should surely come second. However, since this is the hypothesis we (as researchers) are usually interested in, let’s start from there.

Alternative Hypothesis

If you predict a relationship between two variables in your study, then the research hypothesis that you formulate to describe that relationship is your alternative hypothesis (usually H1 in statistical terms). The goal of your hypothesis testing is thus to demonstrate that there is sufficient evidence that supports the alternative hypothesis, rather than evidence for the possibility that there is no such relationship. The alternative hypothesis is usually the research hypothesis of a study and is based on the literature, previous observations, and widely known theories. 

Null Hypothesis

The hypothesis that describes the other possible outcome, that is, that your variables are not related, is the null hypothesis ( H0 ). Based on your findings, you choose between the two hypotheses—usually that means that if your prediction was correct, you reject the null hypothesis and accept the alternative. Make sure, however, that you are not getting lost at this step of the thinking process: If your prediction is that there will be no difference or change, then you are trying to find support for the null hypothesis and reject H1. 

Directional Hypothesis

While the null hypothesis is obviously “static”, the alternative hypothesis can specify a direction for the observed relationship between variables—for example, that mice with higher expression levels of a certain protein are more active than those with lower levels. This is then called a one-tailed hypothesis. 

Another example for a directional one-tailed alternative hypothesis would be that 

H1: Attending private classes before important exams has a positive effect on performance. 

Your null hypothesis would then be that

H0: Attending private classes before important exams has no/a negative effect on performance.

Nondirectional Hypothesis

A nondirectional hypothesis does not specify the direction of the potentially observed effect, only that there is a relationship between the studied variables—this is called a two-tailed hypothesis. For instance, if you are studying a new drug that has shown some effects on pathways involved in a certain condition (e.g., anxiety) in vitro in the lab, but you can’t say for sure whether it will have the same effects in an animal model or maybe induce other/side effects that you can’t predict and potentially increase anxiety levels instead, you could state the two hypotheses like this:

H1: The only lab-tested drug (somehow) affects anxiety levels in an anxiety mouse model.

You then test this nondirectional alternative hypothesis against the null hypothesis:

H0: The only lab-tested drug has no effect on anxiety levels in an anxiety mouse model.

How to Write a Hypothesis for a Research Paper

Now that we understand the important distinctions between different kinds of research hypotheses, let’s look at a simple process of how to write a hypothesis.

Writing a Hypothesis Step:1

Ask a question, based on earlier research. Research always starts with a question, but one that takes into account what is already known about a topic or phenomenon. For example, if you are interested in whether people who have pets are happier than those who don’t, do a literature search and find out what has already been demonstrated. You will probably realize that yes, there is quite a bit of research that shows a relationship between happiness and owning a pet—and even studies that show that owning a dog is more beneficial than owning a cat ! Let’s say you are so intrigued by this finding that you wonder: 

What is it that makes dog owners even happier than cat owners? 

Let’s move on to Step 2 and find an answer to that question.

Writing a Hypothesis Step 2:

Formulate a strong hypothesis by answering your own question. Again, you don’t want to make things up, take unicorns into account, or repeat/ignore what has already been done. Looking at the dog-vs-cat papers your literature search returned, you see that most studies are based on self-report questionnaires on personality traits, mental health, and life satisfaction. What you don’t find is any data on actual (mental or physical) health measures, and no experiments. You therefore decide to make a bold claim come up with the carefully thought-through hypothesis that it’s maybe the lifestyle of the dog owners, which includes walking their dog several times per day, engaging in fun and healthy activities such as agility competitions, and taking them on trips, that gives them that extra boost in happiness. You could therefore answer your question in the following way:

Dog owners are happier than cat owners because of the dog-related activities they engage in.

Now you have to verify that your hypothesis fulfills the two requirements we introduced at the beginning of this resource article: falsifiability and testability . If it can’t be wrong and can’t be tested, it’s not a hypothesis. We are lucky, however, because yes, we can test whether owning a dog but not engaging in any of those activities leads to lower levels of happiness or well-being than owning a dog and playing and running around with them or taking them on trips.  

Writing a Hypothesis Step 3:

Make your predictions and define your variables. We have verified that we can test our hypothesis, but now we have to define all the relevant variables, design our experiment or data analysis, and make precise predictions. You could, for example, decide to study dog owners (not surprising at this point), let them fill in questionnaires about their lifestyle as well as their life satisfaction (as other studies did), and then compare two groups of active and inactive dog owners. Alternatively, if you want to go beyond the data that earlier studies produced and analyzed and directly manipulate the activity level of your dog owners to study the effect of that manipulation, you could invite them to your lab, select groups of participants with similar lifestyles, make them change their lifestyle (e.g., couch potato dog owners start agility classes, very active ones have to refrain from any fun activities for a certain period of time) and assess their happiness levels before and after the intervention. In both cases, your independent variable would be “ level of engagement in fun activities with dog” and your dependent variable would be happiness or well-being . 

Examples of a Good and Bad Hypothesis

Let’s look at a few examples of good and bad hypotheses to get you started.

Good Hypothesis Examples

Bad hypothesis examples, tips for writing a research hypothesis.

If you understood the distinction between a hypothesis and a prediction we made at the beginning of this article, then you will have no problem formulating your hypotheses and predictions correctly. To refresh your memory: We have to (1) look at existing evidence, (2) come up with a hypothesis, (3) make a prediction, and (4) design an experiment. For example, you could summarize your dog/happiness study like this:

(1) While research suggests that dog owners are happier than cat owners, there are no reports on what factors drive this difference. (2) We hypothesized that it is the fun activities that many dog owners (but very few cat owners) engage in with their pets that increases their happiness levels. (3) We thus predicted that preventing very active dog owners from engaging in such activities for some time and making very inactive dog owners take up such activities would lead to an increase and decrease in their overall self-ratings of happiness, respectively. (4) To test this, we invited dog owners into our lab, assessed their mental and emotional well-being through questionnaires, and then assigned them to an “active” and an “inactive” group, depending on… 

Note that you use “we hypothesize” only for your hypothesis, not for your experimental prediction, and “would” or “if – then” only for your prediction, not your hypothesis. A hypothesis that states that something “would” affect something else sounds as if you don’t have enough confidence to make a clear statement—in which case you can’t expect your readers to believe in your research either. Write in the present tense, don’t use modal verbs that express varying degrees of certainty (such as may, might, or could ), and remember that you are not drawing a conclusion while trying not to exaggerate but making a clear statement that you then, in a way, try to disprove . And if that happens, that is not something to fear but an important part of the scientific process.

Similarly, don’t use “we hypothesize” when you explain the implications of your research or make predictions in the conclusion section of your manuscript, since these are clearly not hypotheses in the true sense of the word. As we said earlier, you will find that many authors of academic articles do not seem to care too much about these rather subtle distinctions, but thinking very clearly about your own research will not only help you write better but also ensure that even that infamous Reviewer 2 will find fewer reasons to nitpick about your manuscript. 

Perfect Your Manuscript With Professional Editing

Now that you know how to write a strong research hypothesis for your research paper, you might be interested in our free AI proofreader , Wordvice AI, which finds and fixes errors in grammar, punctuation, and word choice in academic texts. Or if you are interested in human proofreading , check out our English editing services , including research paper editing and manuscript editing .

On the Wordvice academic resources website , you can also find many more articles and other resources that can help you with writing the other parts of your research paper , with making a research paper outline before you put everything together, or with writing an effective cover letter once you are ready to submit.

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Good vs Bad Thesis Statements

7th - 9th grade.

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High school sports have a positive influence on high school students because they teach social skills, reinforce time management skills, and provide exercise to students.

Good thesis

"High school sports have a positive influence on high school students because they teach social skills, reinforce time management skills, and provide exercise to students."

Is a good thesis because (check all that apply):

It is specific

It is something you can argue

It has three supporting points

It uses good vocabulary

Burma is a country in Southeast Asia.

"Burma is a country in Southeast Asia."

Is a bad thesis because (check all that apply):

It is a fact, and not debatable

It's too short

It's too broad.

In Hacket and Goodrich's play, we see many characters with different personalities, giving rise to the theme of personality conflict.

"In Hacket and Goodrich's play, we see many characters with different personalities, giving rise to the theme of personality conflict."

It is debatable

It sounds smart

Because high school offers more class choices, increased personal freedoms, and additional extracurricular activities, it is a better educational institution than middle school.

"Because high school offers a more class choices, increased personal freedoms, and additional extracurricular activities, it is a better educational institution than middle school."

What are the three reasons provided in this good example of a thesis? (check all that apply):

offers more class choices

better educational institution

increased personal freedoms

additional extracurricular activities

Through the selection of characters, setting, and point of view, "A Rose for Emily" examines the consequences of social discrimination.

"Through the selection of characters, setting, and point of view, "A Rose for Emily" examines the consequences of social discrimination."

is a good example of a thesis statement because (check all that apply)...

It includes three supporting details

"The Road Not Taken" and from Call Me Maria, both share a common theme.

Which of the following choices, would be the best way to make this bad thesis "'The Road Not Taken' and from Call Me Maria, both share a common theme. " a good one?

"The Road Not Taken" and from Call Me Maria share a common theme about making decisions.

By using first person point of view in the works "The Road Not Taken" and from Call Me Maria , Robert Frost and Judith Ortiz Cofer are able to showcase the common theme that decisions are not always easy to make.

It is easy to see that both Frost and Cofer wrote stories that share the same theme.

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