Distinctiveness as a marker of identity formation

Individual distinctiveness is theorized to characterize an adaptive identity, but its importance remained underexplored. In two studies, we investigated the nomological networks of two common conceptualizations of distinctiveness: general and comparative distinctiveness. We compared these to the network of identity formation’s best-validated marker: commitment. Findings from two samples of young adults living in the Netherlands (n = 320) and in the US (n = 246) both revealed that general distinctiveness marked adaptive identity formation and greater psychosocial well-being. Moreover, general distinctiveness had unique predictive value over commitment strength. Comparative distinctiveness from important others uniquely indicated lowered social well-being. Our findings illustrate that careful attention should be paid to the conceptualization of distinctiveness, because distinctiveness is an important but complex concept.