Who Should I Ask for Letters of Reference for Grad School

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Discussion Overview

The discussion revolves around the selection of individuals to write letters of reference for graduate school applications, particularly in the context of a small undergraduate physics department. Participants explore the appropriateness of asking different types of referees, including professors and research mentors.

Discussion Character

  • Exploratory, Debate/contested, Conceptual clarification

Main Points Raised

  • One participant suggests asking a summer research mentor for a letter, arguing that this mentor could provide a more thorough assessment of research abilities compared to a professor with whom the applicant has only taken a few classes.
  • Another participant strongly encourages obtaining a letter from research mentors, noting that having letters from different institutions is beneficial.
  • A later reply emphasizes the importance of ensuring that all submitted letters are outstanding, advising against asking a professor unless the applicant is confident in the quality of the letter.
  • Some participants express the idea that having a letter from a mentor outside the home institution is valuable, particularly for applicants with limited experience beyond their own department.

Areas of Agreement / Disagreement

Participants generally agree on the value of obtaining letters from research mentors, but there is some disagreement regarding the appropriateness of asking a professor with limited interaction. The discussion remains unresolved regarding the best approach for the third letter.

Contextual Notes

Participants do not clarify the specific criteria for what constitutes an "outstanding" letter, nor do they define the acceptable number of letters to submit beyond the general guideline of four.

Who May Find This Useful

Students in small academic departments seeking guidance on selecting referees for graduate school applications, particularly in STEM fields.

EJC
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I'm applying to grad schools and my undergrad has a very small Physics department - only 3 professors. I am having at least 2 of them write me letters of reference, but in regards to my third letter, should I ask the other professor, who I've only had a few classes with, or should I ask my mentor at my research internship I had over the summer? I feel like my mentor could speak more to my research abilities and give me a thorough and overall a good letter, but is this generally acceptable?
 
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EJC said:
but is this generally acceptable?

Yes.
 
Definitely ask your summer mentor. In fact, it is strongly encouraged you get a letter from all of your research mentors (unless you already have four letters, if you have a very strong fourth letter most schools will accept it). It is also encouraged that you get a letter from someone at a different institution (like from an REU mentor).
 
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radium said:
It is also encouraged that you get a letter from someone at a different institution (like from an REU mentor).
This summer internship is essentially my only experience outside from my own institution, and the professor I'm doing research under there is one of the professor I already mentioned counting on for a letter. But thanks for your reply! I will move forward by asking all three of my main professors for letters, as well as my mentor at my internship.
 
You should only submit four letters of you know they will all be outstanding, so I wouldn't ask the professor who you have only taken classes with unless you are sure it will be really good.
 

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