A series of 3 experiments with business students examined how a rater'
s relative performance affects peer ratings. In Study 1, with 36 group
s consisting of 178 Ss, outstanding contributors were the most discrim
inating evaluators. In Study 2, with 39 groups consisting of 186 Ss, i
ndividuals rated their own performance as well as that of their peers.
Once again, outstanding contributors were the most discriminating eva
luators, and self-evaluations were higher than the respective ratings
received from peers. In Study 3, with 12 groups consisting of 61 Ss, b
elow-average and average contributors may have discounted their indivi
dual performance outcomes by making allowances for external factors th
at affected their contributions. Together, these studies indicate that
self-other comparisons in a work group influence peer-performance eva
luations.