Necessary Include Thesis Statement Academic Essay

Political Science/JSIS/LSJ Writing Center


Guide to Writing Thesis Statements

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Your thesis statement is the central argument of your essay. It must be concise and well-written.
  • Your thesis goes in the introductory paragraph. Don't hide it; make it clearly asserted at the beginning of your paper.
  • Your thesis must make an argument. It is the road map to the argument you will subsequently develop in your paper.

The key difference between an opinion statement and thesis statement is that a thesis conveys to the reader that the claim being offered has been thoroughly explored and is defendable by evidence. It answers the "what" question (what is the argument?) and it gives the reader a clue as to the "why" question (why is this argument the most persuasive?).

Examples of good thesis statements:
  • "The ability to purchase television advertising is essential for any candidate's bid for election to the Senate because television reaches millions of people and thus has the ability to dramatically increase name recognition."
  • The organizational structure of the United Nations, namely consensus voting in the security council, makes it incapable of preventing war between major powers."


1. Thesis statements must make a claim or argument. They are not statements of fact.

Statement of fact: "A candidates ability to afford television advertising can have an impact on the outcome of Congressional elections." This is essentially an indisputable point and therefore, not a thesis statement.

Similarly, the claim "The United Nations was established to promote diplomacy between major powers." is not likely to inspire much debate.

2. Thesis statements are not merely opinion statements.

Statement of opinion:"Congressional elections are simply the result of who has the most money." This statement does make a claim, but in this format it is too much of an opinion and not enough of an argument.

Similarly, "The United Nations is incapable of preventing war" is closer to a thesis statement than the factual statement above because it raises a point that is debatable. But in this format, it doesn't offer the reader much information; it sounds like the author is simply stating a viewpoint that may or may not be substantiated by evidence.

In conclusion, your thesis should make clear what your argument is; it should also provide the reader with some indication of why your argument is persuasive.

For example: In the congressional elections example, why is money important (and whose money? The candidates'? Corporations'? Special interests'?), are other factors irrelevant (the candidates' views on the issues?) and for which types of elections is this true (is your argument equally true for Senatorial elections and elections for the House of Representatives? Why or why not?)?

In the other example, you will need to think about why the United Nations is not capable of preventing war. Your thesis should indicate that you have an understanding of the relevant historical circumstances and that you are aware of alternative explanations.

Of course, one can re-work a thesis statement indefinitely and one can almost always find something at fault with it. The point is that you must be sure that your thesis statement is indicating to your reader that you have an argument to make.



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A clear sense of argument is essential to all forms of academic writing, for writing is thought made visible. Insights and ideas that occur to us when we encounter the raw material of the world—natural phenomena like the behavior of genes, or cultural phenomena, like texts, photographs and artifacts—must be ordered in some way so others can receive them and respond in turn. This give and take is at the heart of the scholarly enterprise, and makes possible that vast conversation known as civilization. Like all human ventures, the conventions of the academic essay are both logical and playful. They may vary in expression from discipline to discipline, but any good essay should show us a mind developing a thesis, supporting that thesis with evidence, deftly anticipating objections or counterarguments, and maintaining the momentum of discovery.

Motive and Idea

An essay has to have a purpose or motive; the mere existence of an assignment or deadline is not sufficient. When you write an essay or research paper, you are never simply transferring information from one place to another, or showing that you have mastered a certain amount of material. That would be incredibly boring—and besides, it would be adding to the glut of pointless utterance. Instead, you should be trying to make the best possible case for an original idea you have arrived at after a period of research. Depending upon the field, your research may involve reading and rereading a text, performing an experiment, or carefully observing an object or behavior.

By immersing yourself in the material, you begin to discover patterns and generate insights, guided by a series of unfolding questions. From a number of possibilities, one idea emerges as the most promising. You try to make sure it is original and of some importance; there is no point arguing for something already known, trivial, or widely accepted.

Thesis and Development

The essay's thesis is the main point you are trying to make, using the best evidence you can marshal. Your thesis will evolve during the course of writing drafts, but everything that happens in your essay is directed toward establishing its validity. A given assignment may not tell you that you need to come up with a thesis and defend it, but these are the unspoken requirements of any scholarly paper.

Deciding upon a thesis can generate considerable anxiety. Students may think, "How can I have a new idea about a subject scholars have spent their whole lives exploring? I just read a few books in the last few days, and now I'm supposed to be an expert?" But you can be original on different scales. We can't possibly know everything that has been, or is being, thought or written by everyone in the world—even given the vastness and speed of the Internet. What is required is a rigorous, good faith effort to establish originality, given the demands of the assignment and the discipline. It is a good exercise throughout the writing process to stop periodically and reformulate your thesis as succinctly as possible so someone in another field could understand its meaning as well as its importance. A thesis can be relatively complex, but you should be able to distill its essence. This does not mean you have to give the game away right from the start. Guided by a clear understanding of the point you wish to argue, you can spark your reader's curiosity by first asking questions—the very questions that may have guided you in your research—and carefully building a case for the validity of your idea. Or you can start with a provocative observation, inviting your audience to follow your own path of discovery.

The Tension of Argument

Argument implies tension but not combative fireworks. This tension comes from the fundamental asymmetry between the one who wishes to persuade and those who must be persuaded. The common ground they share is reason. Your objective is to make a case so that any reasonable person would be convinced of the reasonableness of your thesis. The first task, even before you start to write, is gathering and ordering evidence, classifying it by kind and strength. You might decide to move from the smallest piece of evidence to the most impressive. Or you might start with the most convincing, then mention other supporting details afterward. You could hold back a surprising piece of evidence until the very end.

In any case, it is important to review evidence that could be used against your idea and generate responses to anticipated objections. This is the crucial concept of counterargument. If nothing can be said against an idea, it is probably obvious or vacuous. (And if too much can be said against it, it's time for another thesis.) By not indicating an awareness of possible objections, you might seem to be hiding something, and your argument will be weaker as a consequence. You should also become familiar with the various fallacies that can undermine an argument—the "straw man" fallacy, fallacies of causation and of analogy, etc.—and strive to avoid them.

The Structure of Argument

The heart of the academic essay is persuasion, and the structure of your argument plays a vital role in this. To persuade, you must set the stage, provide a context, and decide how to reveal your evidence. Of course, if you are addressing a community of specialists, some aspects of a shared context can be taken for granted. But clarity is always a virtue. The essay's objective should be described swiftly, by posing a question that will lead to your thesis, or making a thesis statement. There is considerable flexibility about when and where this happens, but within the first page or two, we should know where we are going, even if some welcome suspense is preserved. In the body of the paper, merely listing evidence without any discernible logic of presentation is a common mistake. What might suffice in conversation is too informal for an essay. If the point being made is lost in a welter of specifics, the argument falters.

The most common argumentative structure in English prose is deductive: starting off with a generalization or assertion, and then providing support for it. This pattern can be used to order a paragraph as well as an entire essay. Another possible structure is inductive: facts, instances or observations can be reviewed, and the conclusion to be drawn from them follows. There is no blueprint for a successful essay; the best ones show us a focused mind making sense of some manageable aspect of the world, a mind where insightfulness, reason, and clarity are joined.

Copyright 1998, Kathy Duffin, for the Writing Center at Harvard University

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