What a thesis has to do
- Make a claim, not an observation - something a reasonable reader could contest
- Be specific about the scope: which texts, cases, period or population
- Signal the shape of the argument, so the reader knows what is coming
- Answer the prompt directly, in the prompt's own terms
The three-part formula
When you are stuck, write it as claim + basis + significance. You can polish the phrasing later; the point is to force all three parts to exist.
Weak: Social media affects teenagers.
Better: Social media affects teenage self-esteem negatively.
Strong: Because engagement-ranked feeds reward social comparison, they contribute more to declining teenage self-esteem than screen time alone does - which makes feed design, not usage limits, the more promising intervention.Testing your draft thesis
- Can you write the opposite sentence and have it still sound plausible? If not, it is not arguable.
- Could you defend it in the word count you have? Narrow it if not.
- Does each planned paragraph attach to it? Anything that does not attach gets cut.
- Does it use the prompt's key terms? Graders look for that alignment.
Where it goes, and when it changes
In most academic essays the thesis sits at the end of the introduction. In longer research papers it may be followed by a short roadmap sentence.
Expect to rewrite it after drafting. What you argued is often sharper than what you set out to argue, and the thesis should be updated to match the essay you actually wrote.
Key takeaways
- A thesis is contestable, specific and scoped to your word count
- Use claim + basis + significance when drafting
- Test it by writing the counter-sentence
- Rewrite it after the draft so it matches the finished argument