Statement of Purpose Checklist: 5 Tests

The reader has your CV and has read hundreds of essays on the same prompt. They cannot verify what you claim about yourself; they can verify what you did, decided, noticed, and got wrong. This page shows what to cut, what to check, and five tests to run before you submit.

This page covers PhD statements of purpose, MBA essays, law school personal statements, and other documents written for someone deciding whether to admit you. Use the lines that apply to your document.

The reader has your curriculum vitae or résumé before they open the essay, so they already know what you did and when. They have also read hundreds of essays on the same prompt.

01

Before you write

The standard structure

Hardship, effort, success, future plan. Most applicants use it, often with the same topics: a parent's influence, a team conflict, a volunteer trip, a refusal to give up. A reader who has seen it hundreds of times can predict your ending.

The popular goal

Applicants from unrelated industries write the same plan: ESG, climate, AI, data. If you name one of these, state something about it that you know from your own work and an outsider would not.

An unresolved problem

Your essay can describe a difficulty you have not yet overcome and how you intend to keep working on it.

02

Two things the reader needs to see, which you cannot simply claim

You can work without constant supervision.
Describe a problem you diagnosed before anyone told you where to look. "I am independent" gives the reader nothing to verify.
You know many results are the product of shared work.
Labs, cohorts, and study groups depend on each member's contribution, and the contributions are not equal. Describe a contribution you made to the group.

03

Three assumptions that weaken a draft

"My achievements speak for themselves."
The reader will not connect your projects for you. State what they have in common, and write each project as evidence of it.
"The committee will read between the lines."
They will not. For each project, state the part that would not have happened without you.
"My passion shows my ability."
The reader looks for the link between what you have done and what you plan to do. "I published two papers, so I will become a professor" contains no link.

04

Cut

The chronology of your work

It is on your CV.

Adjectives about your own effort

Passionately, deeply, vividly, tirelessly.

"Aligns with my interests" and "fits the culture"

Any applicant can write these about any program.

Large words with no content

Paradigm shift, breakthrough, multidisciplinary, advancing the field, novel insights. Replace each with a product, a compound, a number, or a failure mode.

Skills every graduate in your field has

MATLAB for an engineer, Excel for an analyst.

A list of clubs and roles

Choose one trait, and keep only the activities that show it.

The closing line about joining an "esteemed community"

Any applicant can write this about any school.

05

Check

Cause

For each change in your direction, write what caused it. "I did A, and B happened" leaves out the reason, and the reason is what the reader is evaluating.

What you noticed

Most accomplishment paragraphs report the result. Include what you noticed that others had accepted, and what you did to check it.

An outside reader

Many admissions readers are not experts in your industry. "Identified limitations of the previous model" cannot be evaluated by someone who does not know the model. Say what the limitation was.

Pronouns

Writing only “I” makes it unclear which parts you contributed. Use “we” for team work, then specify which part was yours.

Failure

"The equipment proved unreliable" names no decision. Name the decision or hypothesis that failed and what you changed after it.

A claim that could be wrong

A PhD fit paragraph needs a number, a mechanism, or a prediction the professor could dispute. An MBA or law school goal needs a specific market, client group, area of law, or problem the reader could question.

The problem you are aiming at

A problem your field has already settled shows competence. A problem the current consensus cannot explain shows where you might be useful in ten years.

06

Weak and strong

PhD, research experience

Weak
These experiences reinforced my ability to identify root causes and draw novel conclusions from data.
Strong
The layer would not stack. Two fixes from the literature failed, and both assumed the problem was bond strength. I measured surface energy instead, found the mismatch there, and added an amphiphilic interlayer.

PhD, fit

Weak
I am interested in Professor X's work on perovskite stability and would like to contribute to this area.
Strong
Professor X's tunneling-barrier model predicts minimum vacancy barriers at 0.4 nm junctions. My anchor defects perform best at those points, and her model explains my flex-cycle data better than my own did.

MBA and law school, goals

Weak
HBS (or Yale) will give me the leadership (or advocacy) skills and network to drive innovation (or policy) in sustainable energy.
Strong
Law: Most independent designers whose prints are copied by fast-fashion retailers never file a claim. Under U.S. copyright law, a designer who did not register the work before the infringement cannot recover statutory damages or attorney's fees, and actual damages on a $40 print are too small for a lawyer to take the case. I want to use the IP clinic to test whether registering a designer's collection before release changes how often these claims get filed.
MBA: Mid-sized Korean battery-parts suppliers lose EU contracts because they cannot produce the carbon-footprint data the 2027 Battery Regulation requires, not because of price. I want to test that in the supply chain analytics course by modeling the reporting cost for a supplier with three plants.

Résumé, activities

Weak
Violinist, university orchestra; member, choir, baseball club, cooking club, investment club, tutoring society.
Strong
Read unstated needs. Tutored younger students who could not explain what confused them; organized and promoted concerts for musicians who had no interest in promotion.

Interview, "Tell me about yourself"

Weak
I am a supply chain manager at XXX, I have held this role for eight years, and I studied industrial engineering at ZZZ.
Strong
As a supply chain manager, I've learned to predict who will miss a deadline and who can speed up a project.

07

Five tests before you submit

1
Swap the name
Replace the professor's or school's name with a competitor's. If the paragraph still reads correctly, rewrite it. Then imagine another applicant from your industry signing your essay. If they could, rewrite it.
2
Cover the CV
Delete sentences that repeat it.
3
What went wrong
If your draft names no failed decision or hypothesis, the reader has no evidence of what you do when something goes wrong.
4
Check the order
If your paragraphs run motivation, experience, achievement, fit, goal, you are using the order nearly every applicant uses.
5
Give it to an outsider
Ask someone outside your field to read it once. Then ask what they would say about your file to someone making the decision. If their answer would fit another applicant from your industry, the reader who argues for you will have nothing more to say.