Write a literature review that explains what is known and not known about the phenomenon based on a critical evaluation of the five studies

Part 2 minimum 3 pages
Write a literature review that explains what is known and not known about the phenomenon based on a critical evaluation of the five studies.

Critically evaluate each study: Does the author make a compelling case for the meaning and significance of the findings in each of the five studies?

The response to question 3 indicates a need to better understand how a literature review (a) is properly developed and presented and (b) justifies the central research question and design.