Beyond Peer Evaluation Scores: Using PAF and SAPA to Understand Student Contribution

Collecting peer-evaluation scores is often the easy part. The challenge is understanding what those scores actually reveal.

A shared team grade may hide differences in individual contribution. Unusually high or low ratings may reflect genuine differences in effort, but they could also point to inconsistent scoring or team issues that need a closer look.

InteDashboard’s peer evaluation functions include two measures that can help instructors make sense of these results: the Peer Assessment Factor (PAF) and Self Assessment over Peer Assessment (SAPA).

Two ways to understand student contribution

PAF and SAPA offer two different views of the same peer-evaluation results.

PAF shows how teammates assessed a student’s contribution compared with the expected contribution. SAPA compares the student’s own assessment with the average assessment given by their peers.

Used together, they help instructors see both the team’s perspective and the student’s self-perception.

Understanding the Peer Assessment Factor (PAF)

During peer evaluation, students rate their teammates against criteria such as participation, contribution and communication.

InteDashboard combines the scores each student receives and compares their average peer rating with the expected rating for an equally contributing team member. The resulting value is the student’s PAF score.

A PAF above 1 means the student received a higher-than-expected rating from their peers. A PAF of 1 indicates the expected level of contribution, while a PAF below 1 means the student received a lower-than-expected rating.

Instructors who include peer evaluation in grading can multiply the shared team grade by each student's PAF to calculate an individual grade. For example, in a 5-person team with a shared assignment grade of 80: a student with a PAF of 1.10 receives 88, a student with a PAF of 1.00 receives 80, and a student with a PAF of 0.90 receives 72.

Since students typically distribute a fixed pool of points across their teammates, rewarding one student above the expected level often means another receives slightly less, even when everyone is contributing well.

As such, instructors should review the score alongside written feedback and the wider team context. A PAF a little below 1 is common and doesn't, by itself, mean a student underperformed.

You can also check out this detailed interpretation guide covering specific score ranges.

Understanding Self Assessment over Peer Assessment (SAPA)

While PAF focuses on how teammates assess a student, Self Assessment over Peer Assessment (SAPA) compares the score a student gives themselves with the average score they receive from their peers.

A SAPA score above 1 means the student rated their contribution more highly than their teammates did—occasionally a sign the student is inflating their own score to raise their PAF.

A score close to 1 suggests their self-assessment broadly aligns with the team's view, while a score below 1 means the student rated their contribution lower than their peers did, often reflecting modesty rather than an actual shortfall.

SAPA, therefore, can help instructors detect any attempts from students to manipulate or "game" the system.

Spotting bias with rating ratios

Beyond the self-vs-peer comparison, InteDashboard calculates a ratio for every rating a student gives a teammate, comparing it with how the rest of the team rated that same person.

A ratio above 1 often reflects a generous or friendly rating; a ratio below 1 can point to a personal conflict or an unfairly harsh assessment.

InteDashboard flags unusual differences for instructors. By default, values above 1.15 or below 0.85 are highlighted, with stronger colour shading as more team members fall outside the limit (red flag).

This makes it possible to spot potential bias in specific ratings, not just in the team average, without reviewing every score by hand.

Interpreting PAF and SAPA together

PAF and SAPA are most useful when they are reviewed together. One shows how a student’s contribution was rated by their peers, while the other shows how closely the student’s own view matches that feedback.

The table below shows PAF and SAPA combinations and what they may suggest:

These patterns are starting points, not definite conclusions. Instructors should also review written comments, rating ratios and the wider team context before deciding whether feedback or further discussion is needed.

Moving from mere peer evaluation scores to useful insight

Effective peer evaluation is about understanding what the scores may reveal about individual contribution, self-awareness and team dynamics.

By reviewing PAF and SAPA together, instructors can identify where results are broadly aligned and where a closer look may be needed. These insights can support more informed feedback, follow-up conversations and, where appropriate, individual grade adjustments.

Download our PAF and SAPA Interpretation Cheat Sheet below for a quick guide to common score patterns and things to consider when reviewing peer-evaluation results.

If you'd like a walkthrough of the feature, reach out at support@intedashboard.com or book a call with one of our customer advisors.