Abstract
This research demonstrates that group membership instability tends to raise self-related concerns that make it less likely that people value and accept constructive task contributions offered by newcomers. In Study 1 (N = 88), unstable group membership heightened self-related concerns. Participants indicated increased intentions to make unique task contributions and lowered the evaluations of others’ contributions, particularly those from a newcomer. Study 2 (N = 81) used an online minimal group paradigm to obtain behavioral outcomes. Unstable group membership again heightened self-related concerns and gave rise to unique task contributions, even when a newcomer had just offered a high-quality task solution that benefitted the group. Because of their self-related concerns, members with an unstable position also evaluated other members—and the newcomer in particular—more negatively than did members with a stable position. In this way, workgroup instability can undermine (rather than foster) change and innovation.
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