In this section, you want to review previous empirical studies that have already been conducted on this subject/topic. Unless this study has a historical focus, you may need to go as far back as needed. If not, then review recent studies/research that is about 5 years or less.
Note: this literature review, whether embedded in an introduction or standing as an independent section. See Literature Reviews // Purdue Writing Lab 
for assistance.

To assist in the success of a great literature review, students should fall back on the already completed 5-journal article critiques related to the research issue/subject. The articles selected should be no more than 5 years old; the more recent the better.