What is Peer Review?
Peer Review is the process that academic journals use to try to ensure accuracy of published research. In the peer review process articles are given to two or three experts in the field the article is discussing. They read and evaluate it for accuracy and then recommend to the journals editor if the article should be published or not. The reviewers also provide the author with suggest revisions to help improve the article.
Most journals use a double blind peer review process where neither the authors nor the reviewers are aware of each others identities. This is done to ensure impartiality by the reviewers and authors. In academic publishing reviewers and authors are almost never paid for their work. Peer review is often a lengthy process that can take many months to years. For a more in-depth discussion of this process see the video.