book with magnifying glassPeerceptiv’s assessment technology and grading algorithms were developed over a decade of peer assessment research at the University of Pittsburgh Learning Research & Development Center.

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Peerceptiv grew out of the SWoRD (Scaffolded Writing and Reviewing in the Disciplines) research project. Findings from this research clearly demonstrate that critiquing the work of one’s peers improves learning outcomes at the LRDC.

Key research findings include:

  1. Student writing performance improves significantly when students provide peer feedback. Students learn through engaging in teaching their peers as they review.
  2. Student writing performance improves more through feedback from multiple peers than through single instructor (expert) feedback.
  3. Students who only provide feedback on the work of others perform better than those students who only write.
  4. Grades generated from multiple peers tend to be more reliable and just as valid as those generated from a single expert instructor.
  5. Peer assessment uniformly benefits weaker and stronger writers regardless if the feedback is generated from weaker or stronger reviewers. There is no discernible improvement from breaking peers into similarly-skilled subgroups.


SWoRD™ is a trademark owned by the University of Pittsburgh and is being used under license.

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