Social rejection impedes group performance

[Speaker] Zhang, Hongchuan:1
[Co-author] Zhang, Jianwei:2, Zhang, Mei:1, Wang, Chengquan:2, Liu, Oumei:2, Li, Haihong:2, Sun, Ling:1
1:Central University of Finance and Economics (China (People's Republic of China)), 2:Beijing Institute of Technology (China (People's Republic of China))

Previous research found a variety of negative outcomes of social rejection on individuals. Here we presented evidence that social rejection impedes group performance either. In Experiment 1, participants were randomly assigned to 3-player groups playing an online ball tossing game to induce social acceptance or rejection among the 3 members. They were then asked to perform a procedurally interdependent group task. The rejection groups performed worse than the acceptance groups. In Experiment 2, participants were assigned to 3-player groups in which they simulated a train trip, rejecting 0 (acceptance) or only 1 (rejection) member before performing the same group task as in Experiment 1. The rejection groups still performed worse. Further, digital video records of the group task were coded for cues of verbal and nonverbal communication between the members. The starting time-point of communication between members played as the main mediating factor between social rejection and impaired group performance.
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