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A prospective study of 423 MBA students examined the interplay of identity negotiation and group functioning. The findings revealed that self-verification effects (through which group members brought others to see them as they saw themselves) heightened participants' feelings of connection to their groups (i.e., more identification and social integration and less emotional conflict) and improved group project grades on creative tasks (tasks that benefit from divergent perspectives). Appraisal effects (through which groups brought members to see themselves as the group saw them) facilitated group project grades on computational tasks (tasks that require deriving one correct answer). In addition, self-verification effects were more prevalent than appraisal effects. The authors discuss the implications of these findings for understanding the links among self-verification, self-categorization, and group outcomes.
B. et al. (Sat,) studied this question.