Taken together, the studies reviewed above converge on three points: structured peer feedback raises the quality of code students submit in the revision that follows, students trust feedback more when rubric criteria are visible at the moment of writing, and participation drops once feedback is ungraded. They diverge on whether the benefit survives beyond the assignment in which feedback was given, and none follows the same cohort into a later course. That is the gap this study addresses: whethe
Articulate your research gap and stress-test it
Writes the concluding paragraph of a literature review that names the gap your study fills, then stress-tests it with the objections a sceptical reviewer would raise.