I have to help write NIH grants from time to time, and I need to always keep front and center the criteria that NIH peer reviewers use when they evaluate grants. They look at five broad areas: significance, investigators, innovation, approach, and environment. This document explains what each of these five broad areas means.<U+00A0>

National Institutes of Health. Definitions of Criteria and Considerations for Research Project Grant (RPG/X01/R01/R03/R21/R33/R34) Critiques. Updated March 8, 2018. Available at<U+00A0>https://grants.nih.gov/grants/peer/critiques/rpg_D.htm.

This Blog post was added to the website on 2018-04-11 and was last modified on 2020-02-29. You can find similar pages at Grant writing.

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