In addition to articles for your literature review, you may need other types of information for your thesis or dissertation. The library has databases that cover a wide variety of information, inlcuding, but not limited to:
Maps
Newspapers and Current Events
Statistics
Tests, Measurements and Surveys
"Peer review refers generally to the evaluation of professional performance or products by other professionals and, more specifically, to a set of procedures for evaluating grant proposals and manuscripts submitted for publication." (Full Article)
To determine if an article has been peer reviewed/refereed, use the Ulrichsweb Database to see if the journal uses peer review. Enter the name of the journal and look for the referee jersey icon.
Mark, M., & Chua, P. (2005). Peer review. In S. Mathison (Ed.), Encyclopedia of evaluation. (p. 301). Thousand Oaks, CA: Sage Publications, Inc. doi: http://dx.doi.org/10.4135/9781412950558.n404
Primary Sources
A primary source is "an original source of data; one that puts as few intermediaries as possible between the production and the study of data." (Full Article)
Primary source. (2005). In W. Paul Vogt (Ed.), Dictionary of statistics & methodology. (3rd ed., p. 246). Thousand Oaks, CA: SAGE Publications, Inc. doi: http://dx.doi.org/10.4135/9781412983907.n1496
Secondary Sources
A secondary source is "a source that provides non-original (“secondhand”) data or information." (Full Article)
Secondary source. (2005). In W. Paul Vogt (Ed.), Dictionary of statistics & methodology. (3rd ed., p. 291). Thousand Oaks, CA: SAGE Publications, Inc. doi: http://dx.doi.org/10.4135/9781412983907.n1769