How to Choose a Writing Sample for a PhD Application

A PhD writing sample gives an admissions committee evidence of how you think, argue, and handle material in your field. The best choice is not necessarily your longest paper, your latest work, or a publication. It is the strongest piece that meets the program’s requirements and makes your abilities easy to assess.

Start with the instructions for each department. Programs differ in whether they request a sample at all, what subjects they accept, and how many pages they want. If a program gives a specific prompt or format, follow it rather than relying on general advice.

What makes a strong sample?

Look for work that lets readers see your reasoning. A strong sample usually has a focused question, a coherent structure, evidence or methods appropriate to the field, and conclusions supported by the material. It should be readable without requiring the committee to know the entire course or project it came from.

Relevance matters, but it does not mean the paper must match a prospective adviser’s exact research topic. A sample can demonstrate transferable strengths: close reading, quantitative analysis, experimental reasoning, archival research, or a careful literature review. A well-executed paper in a related area is generally better evidence than a weak paper on a perfect-fit topic.

Common possibilities include:

• A seminar or term paper with a clear argument.
• A chapter or excerpt from an undergraduate or master’s thesis.
• A published or submitted article, if you are permitted to share it and it meets the length requirement.
• A substantial research report or other field-appropriate written work.

In some fields, especially many humanities and social-science programs, a writing sample is a standard part of the application. Many science and engineering programs do not require one, or may ask for a different kind of research material. Treat the department’s request as decisive; do not upload an unsolicited document if the application does not invite it.

A practical way to choose

Make a shortlist of two or three possible pieces, then compare them against the instructions and the qualities the committee needs to evaluate.

1. Eliminate pieces that do not meet the rules. Check the required topic, page or word limit, file type, and whether appendices, citations, or supplementary material count toward the limit.
2. Assess the argument and evidence. Ask whether the paper has a specific purpose and whether each major claim is supported. For empirical work, make sure the methods and results are understandable; for interpretive work, make sure the analysis is more than a summary.
3. Check your contribution. If the work has coauthors, identify what you wrote or did, following the application’s instructions. Do not present collaborative work as solely yours.
4. Compare readability and polish. Prefer a piece that is clear and well organized over one that is more complex but difficult to follow.
5. Revise within the rules. Correct errors and improve clarity. If you have substantially reworked a paper since the course or publication, that is usually fine unless the program says otherwise; avoid implying that the submitted version was published if it was not.

For example, suppose you can submit either a 30-page thesis chapter on a topic closely related to the program or a 15-page seminar paper that makes a clear argument and fits the requested 15-page maximum. If the instructions permit an excerpt, the chapter may be a good choice after careful trimming and revision. If they require a complete paper of no more than 15 pages, the seminar paper is the safer choice. The key is to provide a complete, legible piece within the stated limits, not to force a longer project into the application.

Should you use published work?

A publication can be a strong sample, but publication status is not a substitute for fit and quality. A short, polished published article may be useful if it meets the requirements and lets the committee evaluate your own contribution. If it is coauthored, explain your role where the application allows. If the piece is under review or unpublished, describe its status accurately.

You do not need to submit a paper that has never been seen before. Nor should you assume a published paper is automatically the best choice: it may be too short, too specialized, or substantially shaped by collaborators or editors. Choose the work that best demonstrates your own abilities under the program’s rules.

Common mistakes

• Ignoring page limits. A committee may stop reading at the limit, and exceeding it can signal that you did not follow directions. Follow the stated method for counting pages; if unclear, ask the graduate coordinator.
• Submitting an unedited class paper. Course work can be an excellent source, but fix typos, unclear transitions, and unsupported claims before submitting it.
• Choosing only by topic. Topic overlap is useful only if the writing also demonstrates strong analysis and execution.
• Sending a fragment without context. If you submit an excerpt, add a brief note identifying the larger project and explaining where the excerpt fits, if the application permits a note.
• Overdesigning the document. Use a readable font and consistent citations, but avoid elaborate formatting that distracts from the work.
• Using one sample for every application without checking. Requirements can differ even among departments in the same field. Tailor the selection and file to each program’s stated rules.

Final check before uploading

Read the sample as an admissions reader would: can someone outside the original class or project understand the question, follow the reasoning, and see what you contributed? Check that the document opens correctly, includes any required identifying information or anonymization, and falls within the requested length. When instructions are ambiguous, ask the program’s graduate coordinator rather than guessing.