a good thesis is and specific
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.
Use the guidelines below to learn the differences between thesis and purpose statements
First, analyze your primary sources. Look for tension, interest, ambiguity, controversy, and/or complication. Does the author contradict himself or herself? Is a point made and later reversed? What are the deeper implications of the author’s argument? Figuring out the why to one or more of these questions, or to related questions, will put you on the path to developing a working thesis. (Without the why, you probably have only come up with an observation—that there are, for instance, many different metaphors in such-and-such a poem—which is not a thesis.)
A thesis should never be vague, combative or confrontational. An ineffective thesis would be, “Communism collapsed in Eastern Europe because communism is evil.” This is hard to argue (evil from whose perspective? what does evil mean?) and it is likely to mark you as moralistic and judgmental rather than rational and thorough. It also may spark a defensive reaction from readers sympathetic to communism. If readers strongly disagree with you right off the bat, they may stop reading.
What you plan to argue + How you plan to argue it = Thesis
Specific Topic+ Attitude/Angle/Argument=Thesis
The best thesis statement is a balance of specific details and concise language. Your goal is to articulate an argument in detail without burdening the reader with too much information.
Your thesis statement should be as clear and specific as possible. Normally you will continue to refine your thesis as you revise your argument(s), so your thesis will evolve and gain definition as you obtain a better sense of where your argument is taking you.
Your thesis should be limited to what can be accomplished in the specified number of pages. Shape your topic so that you can get straight to the “meat” of it. Being specific in your paper will be much more successful than writing about general things that do not say much. Don’t settle for three pages of just skimming the surface.
In order to make your writing interesting, you should develop a thesis statement that is arguable. Sometimes you will be writing to persuade others to see things your way and other times you will simply be giving your strong opinion and laying out your case for it.
Thesis Statements always take a stand and justify further discussion.