Intergroup and intragroup competition and cooperation

This study examined the effects on group performance and evaluation of three factors: intergroup competition or cooperation, intragroup competition or cooperation, and task means-interdependence. Intragroup cooperation was related positively to performance on a high means-interdependent task and was related negatively to performance on a low means-interdependent task. However, this relationship held only when there was intergroup cooperation rather than intergroup competition. These results were discussed in terms of their implications for the relative magnitude of the motives produced by the intragroup and intergroup reward structure. Evaluations of ingroup members were higher when there was intragroup cooperation than when there was intragroup competition. To foster ingroup liking, it was not necessary to introduce intergroup competition.