Peer review is defined as “a process of subjecting an author’s scholarly work, research or ideas to the scrutiny of others who are experts in the same field” (1). Peer review is intended to serve two purposes:
How do you determine whether an article qualifies as being a peer-reviewed journal article?
What about preprint sites and ResearchGate?
A primary research article reports on an empirical research study conducted by the authors. The goal of a primary research article is to present the result of original research that makes a new contribution to the body of knowledge.
To contrast, the following are not primary research articles (i.e., they are secondary sources):
Articles that are NOT primary research articles may discuss the same research, but they are not reporting on original research, they are summarizing and commenting on research conducted and published by someone else. For example, a literature review provides commentary and analysis of research done by other people, but it does not report the results of the author's own study and is not primary research.