A psychology literature review should do more than summarize one article after another. It should group sources by theme, compare findings, explain methodological limits, and lead the reader toward the research gap your dissertation will address.
Group sources by purpose
Separate theory sources, measurement sources, intervention studies, population-specific studies, and recent empirical findings. This helps the chapter feel analytical instead of chronological.
Make the gap visible
After each major theme, explain what remains unclear. The final section should make your dissertation question feel necessary, focused, and researchable.