What is the purpose of Peer review?
Peer review is designed to assess the validity, quality and often the originality of articles for publication. Its ultimate purpose is to maintain the integrity of science by filtering out invalid or poor quality articles.
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NOT peer reviewed?
Broadly speaking, a non peer reviewed source is anything that is NOT a peer reviewed journal article. A government publication, book or book chapter, a newspaper or magazine article, a website or blog post, a documentary film, or a document published by a government agency are all examples of non-peer reviewed sources. When submitting assignments, be sure to consult your course materials and professor for specific guidelines about acceptable source types (https://library.mtsu.edu/PRST3995/non_pr).