A personal statement for graduate school answers a prompt, and where that prompt comes from depends on how you apply. At Princeton, Cornell and UC Berkeley, the graduate school publishes it on its website. Physical therapy applicants who use PTCAS answer one essay question that goes to every program they apply to. In GradCAS, a shared application platform for graduate programs, each participating program can have its own essays.
Knowing how to write a personal statement for grad school therefore starts before the first draft, with the exact question you will answer. Every prompt and rule below comes from the school’s or service’s page, read in October 2026.
Key Takeaways
- Princeton, Cornell and UC Berkeley publish their personal statement prompts on the graduate school’s website, and their departments or fields can add requirements.
- The three ask a similar first question, about what led you to graduate study. Princeton and Cornell then ask about their community, and Berkeley invites it.
- Some programs take applications through a service: PTCAS sends one essay to every program you apply to, and GradCAS carries program-specific questions and essays.
- Corrections follow each system’s rules: Princeton accepts a revised essay until the deadline, and a submitted PTCAS essay cannot be edited.
How to write a personal statement for grad school in five steps
Step 1: Find who sets your prompt
Begin with the graduate school’s website. Princeton’s Graduate School prints its prompt on a personal statement page and collects the essay with the admission application. Cornell’s Graduate School does the same for the personal statement in its online application, as its personal statements page explains. UC Berkeley’s Graduate Division publishes the prompt for its version, the Personal History Statement, on its page about writing your statements.
Then read the department’s page. Princeton says “additional requirements vary by degree program” in its application overview. At Cornell, “Each field sets its own admission requirements,” according to its application steps. In its Personal History Statement guidance, Berkeley tells you to check the program website “to find out if your statement should include additional or specific information.”
In some fields you apply through a service, and the prompt then comes from the service or from each program inside it. PTCAS, the physical therapist centralized application service provided by APTA, has one required essay question, and your answer goes to all the programs you apply to. Its programs can still add questions and documents of their own.
GradCAS is, in Liaison’s words, “a centralized application platform for graduate admissions,” and an institution using it can set “program-specific questions, essays, documents” for each participating program. Those sit in each program’s Program Materials section, where Liaison notes that “Some programs require an additional essay.”
The document may also go by another name. MIT’s Civil and Environmental Engineering Communication Lab, in its personal statement guide, lists “Personal History Statement” and “Diversity Statement” among the names schools use. On its statements page, Stanford’s Graduate Admissions lists a required statement of purpose and an optional statement titled “Enriching the Learning Community,” which “should not exceed 500 words.”
Copy each prompt from this cycle’s page. Princeton notes that its application requirements are “subject to change annually prior to the opening of the application in September.”
Step 2: Break the prompt into the questions it asks
Princeton’s prompt opens with a framing sentence: “Princeton is strongly committed to welcoming students with diverse experiences.” Then it asks two things. “Describe a personal experience that influenced your decision to pursue graduate study.” And: “Explain how the lessons from this experience would enrich Princeton’s residential scholarly community.”
Write each question on a line of its own, and plan one passage of your statement to answer it. Set side by side, the prompts named in step 1 share a pattern.
| Prompt | What shaped you | What you would bring |
|---|---|---|
| Princeton Graduate School | A personal experience that influenced your decision to pursue graduate study | How the lessons from it would enrich Princeton's residential scholarly community |
| Cornell Graduate School | How your background and experiences influenced your decision to pursue a graduate degree, and your readiness | How you might contribute to Cornell's founding principle and its community of belonging |
| UC Berkeley Personal History Statement | How your background and life experiences influenced your decision to pursue a graduate degree at this time | Optional: how your perspectives, experiences or aspirations align with Berkeley's Principles of Community |
| Stanford, optional statement | The lived experiences, values, perspectives and activities that shape you as a scholar | A distinctive contribution to Stanford |
| PTCAS essay | No separate question | How you see yourself having an impact on the profession upon entering the field |
The first column barely changes from Princeton to Cornell to Berkeley: each asks what in your background led you to graduate study. The second column is where they part. Princeton and Cornell each name their community, and PTCAS asks about the profession.
Note the length limit beside each question list, because the units differ. Princeton’s essay “should not exceed 250 words,” while PTCAS counts 4,500 characters, with spaces and punctuation included.
Step 3: Choose an example for each question
Every question needs evidence from your record. Berkeley’s writing tips read: “Demonstrate everything by example; don’t say directly that you’re a persistent person, show it.” MIT’s lab gives a similar rule: “Use concrete examples that speak for you.”
Cornell’s prompt suggests where to find that evidence. Its page says your statement “may include relevant information” on teamwork, on coming to value “perspectives different from your own,” and on “persistence in overcoming a setback or challenge.” Choose the experiences first, and the wording later.
If a grade, a gap or a change of field needs explaining, check whether this prompt is the place for it. Berkeley’s Personal History Statement guidance says that where your academic record does not “fully reflect your potential, you can provide context here.” Stanford’s School of Humanities and Sciences, in its guide to getting into grad school, asks applicants to “address the issue directly and don’t blame others.”
Cornell, Berkeley and Stanford also require a statement of purpose. Cornell wants the personal statement to “complement rather than duplicate” it, so settle which document carries what before you draft either. Writing the statement of purpose itself is a separate job, covered in our statement of purpose guide.
Step 4: Draft, then revise against the prompt
Stanford’s guide lists drafting tips for personal statements, starting with “First jot down some preliminary thoughts or phrases over a period of time.” The same list says: “Make sure you are answering the questions you are asked to answer. Regularly go back to the specific prompt or instructions for the statement.”
Revise with your question list from step 2 beside the draft. For each question, mark the sentences that answer it. A question with no sentence is still open, and a passage that answers none of them is a candidate to cut.
Then get a reader. Stanford’s list ends with feedback “from people you trust to ensure your writing conveys your thoughts effectively and genuinely.” MIT’s lab says feedback from friends, family and peers “can be invaluable throughout the brainstorming and revision process.”
The prompt pages also settle personal statement format: Princeton says “No specific formatting is required,” and the PTCAS essay box does not save “tabs, italics, multiple spaces.”
Step 5: Check the upload rules before you submit
Each system handles corrections differently, so read its rule before you submit. Princeton lets you upload a corrected essay “through the checklist before the deadline,” and after that, “no revised essays will be accepted.”
PTCAS is stricter: “Once you submit your application, you cannot edit your essay.” If you find an error that could have major effects, its page recommends sending a corrected copy directly to your programs.
In GradCAS, a file uploaded in one program’s Program Materials section is for that program alone: “Uploaded documents will only be visible to that specific program.” Check that each statement sits in the section of the program it was written for.
Where an advisor fits
We edit and advise; we never write your statement, and every sentence a committee reads stays yours. Our graduate application advisors review applications and help edit essays, and their Personal Statement Review works through “multiple rounds of detailed edits.”
If you are applying this cycle, bring the prompts you copied in step 1 to a free consultation.
Frequently Asked Questions
Do you need a personal statement for grad school?
It depends on the school. Princeton’s Graduate School, Cornell’s Graduate School and Berkeley’s Graduate Division each require one in their applications, Berkeley under the name Personal History Statement. Stanford’s Graduate Admissions requires a statement of purpose and makes its community statement optional. In GradCAS, the essays can differ from program to program.
Can you use the same personal statement for different grad schools?
Only in part. The background half can carry over, since Princeton, Cornell and Berkeley all ask how you came to graduate study. The contribution half cannot: Princeton and Cornell each ask what you would bring to their community. PTCAS sends one essay to all your programs and says to keep it general.
How personal should a grad school personal statement be?
As personal as its prompt asks. Berkeley’s Personal History Statement invites family, cultural and economic experiences, and hardships. When a prompt invites personal material, Stanford’s Humanities and Sciences guide says to “carefully consider what aspects to share, along with how to frame these disclosures.” MIT’s lab says some formality should be preserved.
How do you end a personal statement for graduate school?
With the forward-looking part of the prompt. Princeton’s second question asks how your experience’s lessons would enrich its community, so answering in order ends there. MIT’s lab says your story should show “what are the next steps you are aiming to take.” Close on those steps and on this program.