Newspapers, magazines and journals are called periodicals because they are issued/published on a regular or "periodic" basis (usually more frequently than once a year.)
Periodicals are usually separated into four major groups:
If you are able to recognize the differences between a magazines, newspapers, trade/professional, and scholarly/peer reviewl source, you can focus your research to retrieve only the type of articles you need.
Characteristics of a scholarly or peer reviewed articles:
Types of research articles include:
Some examples of scholarly or peer reviewed journals:
Once you identify a great article, look for the following
Note: The structure and format of peer-reviewed scientific manuscripts (articles) are changing. You might find peer-reviewed articles without a separate literature review and conclusion sections. These sections will be part of the introduction and discussion sections.
Scholarly and professional journals feature articles written by researchers and practitioners in a particular subject area. The authors often have particular specialties. Peer groups of researchers, scholars and professionals within a specific discipline are the audience for scholarly literature.
Peer review is a well-accepted indicator of quality scholarship. It is the process by which an author's peers read a paper submitted for publication. A number of recognized researchers in the field will evaluate a manuscript and recommend its publication, revision, or rejection. Articles accepted for publication through a peer review process implicitly meet the discipline's expected standards of expertise.
Articles in some scholarly and professional journals are not peer-reviewed, but are selected by an editor or board. Standards of scholarship in such journals are often equal or comparable to those of peer-reviewed publications, although this is not always the case.
Source: University Libraries, University of Nevada, Reno.