what are working thesis

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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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

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

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

• Pulling It Together:
• Module Objectives
• 1. Citing Sources – Part of Academic Culture
• 2. Plagiarism
• 3. Citations and Bibliographies
• 4. Citation Style
• 5. Citation Management
• 6. Annotated Bibliographies
• 1. The Writing Process
• 2. Essay Format
• 3. Where to Begin
• 4. Strategies for Starting
• 5. Drafting
• 6. Developing a Working Thesis
• 7. Your Reader
• 8. The Conclusion
• 9. The Introduction
• 1. Why Revise?
• 2. Thinking Like a Reader
• 3. Take a Break
• 4. Ask Others
• 5. Reviewing
• •  The Whole
• •  Reviewing the Paragraphs
• • The Sentences
• 1. Why Edit?
• 2. Editing:
• •  Citations
• •  Language
• •  Punctuation & Format
• •  Test Your Knowledge
• 3. Tracking Frequent Errors

• Pulling It Together
• Writing Strategies

Developing a Working Thesis

• Starting Techniques

Developing a working thesis   can serve to tell you what further information you need to provide in the essay and help you decide on the order of your ideas, or what further arguments you need to support the working thesis.  

After a few cycles of stating, working with and revising a working thesis, you will have created the actual thesis   or central idea of your essay.

As you write, keep returning to the question that you hope your essay will answer. Don’t hesitate to revise this question as your understanding of the topic develops. Each time you do so, consider what your possible or probable answer is at that point. This answer can be written out in sentence form and serve as a working thesis, something like a hypothesis that you are testing.  

Your working thesis should state your position on your topic and not simply present a topic. One way to generate a working thesis is to complete the following sentence in relation to the question you hope your essay will answer:

            At this point I think I am going to argue that ….

  To learn more about a working thesis, see Developing a Working Thesis under Resources.

Objectifs du module

Ce module sur la compréhension des travaux fournit des stratégies pour :

• vous familiariser avec les exigences générales d’un travail de recherche universitaire;
• déterminer le but d’un travail afin de vous guider dans le processus de rédaction;
• reconnaître les différents types de travaux de recherche et les mots-indicateurs qui y sont associés;
• appliquer noter des approches disciplinaires différentes
• identifier le public cible et tenir compte de son rôle dans le travail.

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Parts of a Thesis Sentence

The thesis sentence is the key to most academic writing. This is important and worth repeating: The thesis sentence 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, agreed or disagreed, or developed your own unique ideas as a result of your analysis. The thesis sentence is the one sentence that encapsulates the result of your thinking, as it offers your main insight or argument in condensed form.

A basic thesis sentence has two main parts:

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

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

Topic: Regular exercise regime

Angle: Leads to multiple benefits

Thesis Angles

Most writers can easily create a topic: television viewing, the Patriot Act, Shakespeare’s Hamlet. The more difficult part is creating an angle. But the angle is necessary as a means of creating interest and as a means of indicating the type and organization of the information to follow.

Click on each of the thesis angles in the box below that you want to learn more about.

So what about this thesis sentence? Adult college students have different experiences than traditionally-aged college students.

As a reader, you understand intuitively that the information to come will deal with the different types of experiences that adult college students have. But you don’t quite know if the information will deal only with adults, or if it will compare adults’ experiences with those of typical college students. And you don’t quite know what type of information will come first, second, third, etc.

Realize that a thesis sentence offers a range of possibilities for specificity and organization. As a writer, you may opt to pique reader interest by being very specific or not fully specific in your thesis sentence. The point here is that there’s no one standard way to write a thesis sentence.

Sometimes a writer is more or less specific depending on the reading audience and the effect the writer wants to create. Sometimes a writer puts the angle first and the topic last in the sentence, or sometimes the angle is even implied. You need to gauge your reading audience and you need to understand your own style as a writer. The only basic requirements are that the thesis sentence needs a topic and an angle. The rest is up to you.

Common Problems

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.

Thesis Sentence too Broad

Hospice workers need support.

The sentence above actually 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.

Thesis Sentence too Narrow

Hospice workers have a 55% turnover rate compared to the general health care population’s 25% turnover rate.

The above 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:

The high turnover rate in hospice workers (55 percent) compared to the general health care population (25 percent) indicates a need to develop support systems to reverse this trend.

Where to Place a Thesis?

In the U.S., it’s customary for most academic writers to put the thesis sentence somewhere toward the start of the essay or research paper. The focus here is on offering the main results of your own thinking in your thesis angle and then providing evidence in the writing to support your thinking.

A legal comparison might help to understand thesis placement. If you have seen television shows or movies with courtroom scenes, the lawyer usually starts out by saying, “My client is innocent!” to set the scene, and then provides different types of evidence to support that argument. Academic writing in the U.S. is similar; your thesis sentence provides your main assertion to set the scene of the writing, and then the details and evidence in the rest of the writing support the assertion in the thesis sentence.

As a writer, you have the option of placing the thesis anywhere in the writing. But, as a writer, you also have the obligation to make the thesis sentence idea clear to your readers. Beginning writers usually stick with “thesis sentence toward the start,” as it makes the thesis prominent in the writing and also reminds them that they need to stick with providing evidence directly related to that thesis sentence’s angle.

Thesis Creation

At what point do you write a thesis sentence? Of course, this varies from writer to writer and from writing assignment to writing assignment. You’ll usually do some preliminary idea development first, before a thesis idea emerges. And you’ll usually have a working thesis before you do the bulk of your research, or before you fully create the supporting details for your writing.

Think of the thesis as the mid-point of an hourglass.

You develop ideas for writing and prewriting, using various strategies, until a main idea or assertion emerges. This main idea or assertion becomes your point to prove—your working thesis sentence.

Once you have a working thesis sentence with your main idea, you can then develop more support for that idea, but in a more focused way that deepens your thinking about the thesis angle.

Realize that a thesis is really a working thesis until you finalize the writing. As you do more focused research, or develop more focused support, your thesis may change a bit. Just make sure that you retain the basic thesis characteristics of topic and angle.

Thesis Checklist

When you draft a working thesis, it can be helpful to review the guidelines for a strong thesis. The following checklist is a helpful tool you can use to check your thesis once you have it drafted.

An interactive or media element has been excluded from this version of the text. You can view it online here: http://pb.libretexts.org/itcc/?p=280

Contributors and Attributions

• Parts of a Thesis Sentence. Provided by : Excelsior OWL. Located at : https://owl.excelsior.edu/writing-process/thesis-sentence/ . License : CC BY: Attribution

• MALS Program

MALS Writing Center

A resource for interdisciplinary writers, photo ©2009 david frazier.

• Arriving at a Working Thesis

Once you have chosen and refined a topic, you will need to form a set of research questions about that topic, and next form a working thesis to answer the research questions. But what exactly is a working thesis? It is a proposed answer to a focused research question, and it is the main point of your argument that you develop throughout your paper. A working thesis is "working" because it guides your research at the same time that your research tweaks it. A working thesis is far enough along to serve as a viable research question-and-answer-pair, but it is still pliable and open to being altered or refined further as your research progresses and as you discover other, related research questions and answers.

Read through the following sections on topic development, and follow the advice given to watch your topic grow and develop into a working thesis (like a research Chia Pet):

The Research Question The Working Thesis The "So What?" Test Lather, Rinse, Repeat

The research question

Your central research question is the driving force of your paper. You are not simply reporting on a topic, such as "treehouses." While such a report might be informative for you or a handful of treehouse novices, it would not produce anything new in the repertoire of treehouse literature, and therefore would simply be repeating information that has already been established.

Instead, you are trying to find out something new relating to that topic (e.g., how does a treehouse contribute to the emotional development of a child?) that will also make a contribution to the scholarly community. In other words, the answer (i.e., your paper) to your central research question needs to matter in your field and to contribute new knowledge to the existing pool. This last part is most important, and you should constantly keep it in the forefront of your mind.

Evaluating the Quality of Your Central Research Question

Your central research question not only needs to be interesting and relevant, but also practical in terms of time and resources available. Ask the following eight questions to evaluate the quality of your research question and the feasibility that you can answer it in the time that you have:

• Does the question deal with a topic or issue that interests me enough to spark my own thoughts and opinions?
• Is the question easily and fully researchable in the time I have to complete the paper?
• What type of information do I need to answer the research question? For example, the research question "What impact has deregulation had on commercial airline safety?" will obviously require certain types of information: + statistics on airline crashes before and after + statistics on other safety problems before and after + information about maintenance practices before and after + information about government safety requirements before and after
• Is the scope of this information reasonable? (e.g., can I really research 30 on-line writing programs developed over a span of 10 years?)
• Given the type and scope of the information that I need, is my question too broad, too narrow, or just right? If you have appropriately narrowed your topic before coming up with a research question, you shouldn't have too much trouble with this one.
• What sources will have the type of information that I need to answer the research question (journals, books, internet resources, government documents, people)?
• Can I access these sources? (e.g., if the bulk of your sources reside in an archive in Newfoundland, you may wish to rethink your question)
• Given my answers to the above questions, do I have a good quality research question that I actually will be able to answer by doing research?

Back to Top

The working thesis - your stand on the research question.

After you come up with a viable research question on your topic, it's time to formulate the working thesis. What does a working thesis say and do?

Defining Features of a Working Thesis

* for most student work, it's a one- or two- sentence statement that explicitly outlines the purpose or point of your paper. A thesis is to a paper what a topic sentence is to a paragraph * it should point toward the development or course of argument the reader can expect your argument to take, but does not have to specifically include 'three supporting points' as you may have once learned * because the rest of the paper will support or back up your thesis, a thesis is normally placed at or near the end of the introductory paragraph. * it is an assertion that a reasonable person could disagree with if you only gave the thesis and no other evidence. It is not a fact or casual observation; it must beg to be proved. And someone should be able to theoretically argue against it (how successfully will depend, of course, on how persuasive you are) * it takes a side on a topic rather than simply announcing that the paper is about a topic (the title should have already told your reader your topic). Don't tell a reader about something; tell them what about something. Answer the questions "how?" or "why?" * it is sufficiently narrow and specific that your supporting points are necessary and sufficient, not arbitrary; paper length and number of supporting points are good guides here * it argues one main point and doesn't squeeze three different theses for three different papers into one sentence

Most importantly, it passes the "So What?" Test...

the "so what?" test

No one wants to write a paper that doesn't matter, much less read one. Choose a topic worth arguing about or exploring. This means to construct a thesis statement about a problem that is still debated, controversial, up in the air. So arguing that treehouses can be dangerous-- while you could find a ton of evidence to support your view --would be pretty worthless nowadays. Who would want to read something they already knew? You wouldn't be persuading them of anything and all your work would be pretty meaningless.

We like to refer to this as the "So what?" factor. Good research questions (and their corresponding working theses) pass the "so what?" test. This means that during the topic-formulating stage and again now, always keep asking "SO WHAT?", "WHO CARES?" or, to paraphrase the famous Canadian journalist Barbara Frum, "Tell me something new about something I care about." That will automatically make your paper significant and interesting both for you to write and the reader to study.

Now let's apply this test to a sample thesis about the relationship between treehouses and child development:

Sample Thesis: "Having a treehouse is beneficial to a child's self-confidence because it allows a child to have a place of her own. "

Now we ask, who cares? So what if treehouses are beneficial to a child's self-confidence - so are lots of things? Why treehouses? Oh! Because they allow a child to have a place of her own! Well, what do you mean by "a place of her own"? That's pretty vague. A place to do what? Hmmmm...

Maybe we need to clarify our thesis a bit. First, let's think about what we mean by "a place of one's own." Do we mean a place owned by an individual? Not exactly. I think that we mean a place in which a person is not under the direct supervision and authority of another person, or a place in which a person can be in charge of herself and act as she wishes, like a domain. So, how might you reword this phrase to clarify this meaning to yourself and the reader? Let's try this revision:

"Having a treehouse is beneficial to a child's self-confidence because a treehouse provides a place of one's own - a place to be independent and feel 'in charge.' "

Okay. That's a little better. Our readers will now know that we are arguing that a place of one's own provides independence and a sense of power (and maybe even responsibility), and that such places benefit a child's self-confidence.

But wait......What's so special about a treehouse? Plenty of places offer a "place of one's own."

Good question. Your paper should explain what is unique about treehouses if you wish to make a strong argument. Otherwise, you might as well just argue that any old "place of your own" benefits self-confidence. How can our thesis statement communicate to our readers that treehouses are significant places?

Once again, let's reword our thesis statement for enhanced clarity and strength:

"A treehouse is beneficial to a child's self-confidence because it provides a child with a place to be independent and 'in charge,' and a treehouse fosters imagination and appreciation for nature that other play spaces cannot duplicate."

Congratulations! You've asked and answered So What? and Who Cares? It's a thesis that looks at what treehouses could be doing, and people would certainly be interested in following your development on this issue. After all, you're not writing a paper trying to convince others that children like treehouses. Few would be interested in reading that. Now you can keep developing your working thesis until you have pinned down any question that might remain: e.g., What is the connection between "independence" and "imagination" and "appreciation for nature"? And so on...

In summary, if you can provide a good case, with evidence, that treehouses give a child a place of her own that improves self-confidence in a unique way, you could be making a good contribution to those interested in child-development (or treehouse manufacturers - they'd love to advertise this!). Moreover, you will need to satisfactorily argue the specific benefits of treehouses. Good enough for now (this is a working thesis, after all).

The process we just went through to arrive at our working thesis might seem tedious, but it is actually very typical for writers to continually revise their working theses. In fact, our treehouse thesis is probably an exceptionally easy example. In reality, you will be revising, clarifying, revising, and clarifying throughout the writing process as your ideas develop and you add more evidence from research that shapes and reshapes your project.

We like to call this whole process of developing the working thesis the "lather, rinse, repeat" process - you are constantly refining your working thesis to make it "cleaner" and more effective. The link below takes you to a rather handy, printable synopsis of what is on this page.

Lather, Rinse, Repeat Handout

A final note - FEAR NOT! The best thing you can remember when at this stage of the writing process is to remain fearless of your topic and your research. You might stumble at points when your research forces you to question your own argument. This is good! It does NOT mean that your argument is not good - it simply means that you have an opportunity to clarify your ideas and increase your knowledge.

Next Topic: Managing Your Research

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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?
• picture_as_pdf Thesis

Writing Process: Prewriting

Working thesis statement, parts of a thesis sentence.

The thesis sentence is the key to most academic writing. This is important and worth repeating: The thesis sentence 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, agreed or disagreed, or developed your own unique ideas as a result of your analysis. The thesis sentence is the one sentence that encapsulates the result of your thinking, as it offers your main insight or argument in condensed form.

A basic thesis sentence has two main parts:

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

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

Topic: Regular exercise regime

Angle: Leads to multiple benefits

Thesis Angles

Most writers can easily create a topic: television viewing, the Patriot Act, Shakespeare’s Hamlet. The more difficult part is creating an angle. But the angle is necessary as a means of creating interest and as a means of indicating the type and organization of the information to follow.

Click on each of the thesis angles in the box below that you want to learn more about.

So what about this thesis sentence? Adult college students have different experiences than traditionally-aged college students.

As a reader, you understand intuitively that the information to come will deal with the different types of experiences that adult college students have. But you don’t quite know if the information will deal only with adults, or if it will compare adults’ experiences with those of typical college students. And you don’t quite know what type of information will come first, second, third, etc.

Realize that a thesis sentence offers a range of possibilities for specificity and organization. As a writer, you may opt to pique reader interest by being very specific or not fully specific in your thesis sentence. The point here is that there’s no one standard way to write a thesis sentence.

Sometimes a writer is more or less specific depending on the reading audience and the effect the writer wants to create. Sometimes a writer puts the angle first and the topic last in the sentence, or sometimes the angle is even implied. You need to gauge your reading audience and you need to understand your own style as a writer. The only basic requirements are that the thesis sentence needs a topic and an angle. The rest is up to you.

Common Problems

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.

Thesis Sentence too Broad

Hospice workers need support.

The sentence above actually 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.

Thesis Sentence too Narrow

Hospice workers have a 55% turnover rate compared to the general health care population’s 25% turnover rate.

The above 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:

The high turnover rate in hospice workers (55 percent) compared to the general health care population (25 percent) indicates a need to develop support systems to reverse this trend.

Where to Place a Thesis?

In the U.S., it’s customary for most academic writers to put the thesis sentence somewhere toward the start of the essay or research paper. The focus here is on offering the main results of your own thinking in your thesis angle and then providing evidence in the writing to support your thinking.

A legal comparison might help to understand thesis placement. If you have seen television shows or movies with courtroom scenes, the lawyer usually starts out by saying, “My client is innocent!” to set the scene, and then provides different types of evidence to support that argument. Academic writing in the U.S. is similar; your thesis sentence provides your main assertion to set the scene of the writing, and then the details and evidence in the rest of the writing support the assertion in the thesis sentence.

As a writer, you have the option of placing the thesis anywhere in the writing. But, as a writer, you also have the obligation to make the thesis sentence idea clear to your readers. Beginning writers usually stick with “thesis sentence toward the start,” as it makes the thesis prominent in the writing and also reminds them that they need to stick with providing evidence directly related to that thesis sentence’s angle.

Thesis Creation

At what point do you write a thesis sentence? Of course, this varies from writer to writer and from writing assignment to writing assignment. You’ll usually do some preliminary idea development first, before a thesis idea emerges. And you’ll usually have a working thesis before you do the bulk of your research, or before you fully create the supporting details for your writing.

Think of the thesis as the mid-point of an hourglass.

You develop ideas for writing and prewriting, using various strategies, until a main idea or assertion emerges. This main idea or assertion becomes your point to prove—your working thesis sentence.

Once you have a working thesis sentence with your main idea, you can then develop more support for that idea, but in a more focused way that deepens your thinking about the thesis angle.

Realize that a thesis is really a working thesis until you finalize the writing. As you do more focused research, or develop more focused support, your thesis may change a bit. Just make sure that you retain the basic thesis characteristics of topic and angle.

Thesis Checklist

When you draft a working thesis, it can be helpful to review the guidelines for a strong thesis. The following checklist is a helpful tool you can use to check your thesis once you have it drafted.

• Parts of a Thesis Sentence. Provided by : Excelsior OWL. Located at : https://owl.excelsior.edu/writing-process/thesis-sentence/ . License : CC BY: Attribution

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Tips and Examples for Writing Thesis Statements

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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

• University of Wisconsin-Madison

Spring 2024 Mechanical Engineering Design Showcase

Departments:, categories:.

Forty-six project teams made up of 187 mechanical engineering senior level students presented their work at the spring 2024 design showcase event earlier this month!

“The Showcase displayed a diverse group of projects (from Industry, Community Service, Research, and Student Design Competitions) that represent the diverse interests of our student body and the discipline of mechanical engineering, which is what makes this event so engaging,” shared course instructor and Assistant Teaching Professor Michael Cheadle .

Over the ten years that Cheadle has been running the course, the ME senior design program has seen incredible growth. In fall 2024 there is a new influx of entrepreneurial senior design project opportunities coming from the Borgen Design Fund and at this spring showcase, ME alumni Tim and Tom Smart announced the very first Smart Brothers Design Awards!

Special thanks to the project judges Tim Smart, Tom Smart, Lennon Rodgers, Jesse Darley, Jay Bowe, Joey Andrews, and Xiaoping Qian for their time, expertise, and appreciation for the hard work of our students!

Recent senior design stories

Bucky’s Bionic Runners pass the baton

A look at aerospace engineering in senior design

Featured image: The crowded atrium at the May 2, 2024 showcase event.

Comparison of Soil Carbon Dynamics Between Restored Prairie and Agricultural Soils in the U.S. Midwest

Globally, soils hold more carbon than both the atmosphere and aboveground terrestrial biosphere combined. Changes in land use and land cover have the potential to alter soil carbon cycling throughout the soil profile, from the surface to meters deep, yet most studies focus only on the near surface impact ( 3 and C 4 photosynthetic pathway plant community composition. Comparative analysis of edaphic properties and soil carbon suggests that deep loess deposits in Nebraska permit enhanced water infiltration and SOC deposition to depths of ~100 cm in 60 years of prairie restoration. In Illinois, poorly drained, clay/lime rich soils on glacial till and a younger restored prairie age (15 years) restricted the influence of prairie restoration to the upper 30 cm. Comparing the δ 13 C values of SOC and SIC in each system demonstrated that SIC at each site is likely of lithogenic origin. This work indicates that the magnitude of influence of restoration management is dependent on edaphic properties inherited from geological and geomorphological controls. Future work should quantify root structures and redox properties to better understand the influence of rooting depth on soil carbon concentrations. Fast-cycling C dynamics can be assessed using continuous, in-situ CO 2 and O 2 soil gas concentration changes. The secondary objective of my thesis was to determine if manual, low temporal resolution gas sampling and analysis are a low cost and effective means of measuring soil O 2 and CO 2 , by comparing it with data from in-situ continuous (hourly) sensors. Manual analysis of soil CO 2 and O 2 from field replicates of buried gas collection cups resulted in measurement differences from the continuous sensors. Measuring CO2 concentration with manual methods often resulted in higher concentrations than hourly, continuous measurements across all sites. Additionally, O 2 concentrations measured by manual methods were higher than hourly values in the restored prairie and less in agricultural sites. A variety of spatial variability, pressure perturbations, calibration offsets, and system leakage influences on both analysis methods could cause the discrepancy.

NSF Grant 1331906

Degree type.

• Master of Science
• Earth, Atmospheric and Planetary Sciences

Campus location

• West Lafayette

Advisor/Supervisor/Committee Chair

Additional committee member 2, additional committee member 3, additional committee member 4, additional committee member 5, usage metrics.

• Environmental biogeochemistry
• Soil chemistry and soil carbon sequestration (excl. carbon sequestration science)