Words to look for as clues include: analysis, study, investigation, examination, experiment, numbers of people or objects analyzed, control group, or survey.
* Literature reviews and meta-analyses also describe the authors' research method/methodology, focusing on their database search strategy and development of criteria for including or excluding individual study results. These articles are still secondary sources because they synthesize the findings of multiple research studies; the authors are not the primary researchers.
Many electronic resources (research databases, e-books, etc.) are limited to CSU students, faculty, and staff when accessed off campus. You may be prompted to authenticate by entering your CampusNet ID and password.