Explain the rules before collecting responses
Tell people who can see individual responses and how the report will display them. If the line manager’s response appears separately, explain this before people complete the survey.
Check what could identify a rater
With two peers in a group, a comment about a rare joint project may give away its author. Agree in advance on the minimum group size and who will review comments before releasing the report.
Plan for small teams
If a group falls below the agreed threshold, withhold its results or combine it with another group when the combination makes sense and participants were told in advance. Apply the same rule to exported reports.