Blog / Study explainer · 2026-10-24 · By The Evidence Signal

Does structure make online peer feedback better? One study of four approaches

Evidence level: Level 2 (automatic grade, not yet checked by a person). The study compared groups, but the abstract does not report that the groups started out alike, so it cannot reach Level 3. It also measured mostly feelings, awareness and patterns of talk rather than learning. With 98 students and no reported precision range or power check, a person's review may lower it to Level 1 under our small-sample rule. How we grade

Source: Fostering Dialogic Peer Feedback in Synchronous Online Discussions: The Effect of Argumentation Scaffold and Role Assignment, International Journal of Educational Technology in Higher Education, 2026 (listed in ERIC as peer reviewed). We read the abstract, not the full paper.

The question

Peer feedback in live online discussions has real benefits, but students often struggle to give and discuss feedback well. Do two supports help: an argumentation scaffold (a structure for making and backing up claims) and assigned roles?

What the study did

98 undergraduates were assigned to four conditions in a quasi-experimental design:

  • peer feedback discussion only (the comparison group, 24 students)
  • with an argumentation scaffold (24)
  • with assigned roles (25)
  • with both the scaffold and roles (25)

What it found

The authors report that:

  • the argumentation scaffold improved students' positive emotion and their social metacognition, meaning their awareness and judgment of how the group was thinking together.
  • adding role assignment reduced these benefits.
  • the patterns of talk differed: the scaffold led to deeper argumentation, roles increased participation, and the combination supported higher-level cognitive engagement.

What this means for you

  • If you want better reasoning in peer feedback, a structure for making and supporting claims looks like the stronger lever in this study.
  • Assigned roles went with more participation, but the authors report that adding them reduced some of the scaffold's benefits.
  • This is one study of 98 college students in four groups of about 24 each, with no reported check that groups started alike. Treat it as a useful idea to try, not a settled answer.

What we have not checked

We have not read the full paper, so we cannot report effect sizes, how outcomes were measured, or whether the small-sample rule applies.

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Reference

Li, Y., Guo, X., Pi, Z., Yu, Q., & Yang, J. (2026). Fostering dialogic peer feedback in synchronous online discussions: The effect of argumentation scaffold and role assignment. International Journal of Educational Technology in Higher Education, 23(1), Article 26. https://doi.org/10.1186/s41239-026-00603-y