24 teams composed of college students played a modified Prisoner's Dilemma game with other teams composed of confederates. Ss rated competitive confederates higher on ability and lower on game-related motives. Japanese students showed more cooperation than did Caucasians. The results suggest that bias in intergroup perceptions can favor as well as belittle the outgroup and that the nature of the distortion depends on the outgroup's behavior as well as on dynamic factors.
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