"[A] process whereby experts in a given field help judge the value of a relevant work or ideas that they were not part of creating. The primary function of peer review is gatekeeping--selecting the best from a pool of submissions. It also serves, however, as a source of constructive criticism, whereby expert feedback by peers can be taken into account to improve ideas, research proposals, and papers."
Peer review. (2018). In Encyclopædia Britannica. Retrieved from https://academic-eb-com.eztest.ocls.ca/levels/collegiate/article/peer-review/627766