Unique individual or interchangeable group member? The accentuation of intragroup differences versus similarities as an indicator of the individual self versus the collective self.

In 4 studies, the authors examined antecedents of self-definition as either a unique individual (the individual self) or an interchangeable group member (the collective self). Accentuation of perceived similarities versus differences among in-group members including the self served as the main indicator of participants' relative emphasis on their individual or collective self. Following prior work in the social identity and self-categorization theory tradition, the authors predicted and found systematic variations in the relative emphasis on the individual or collective self. Relative emphasis varied with the valence of temporarily salient in-group features, with the more stable or chronic attractiveness of one's in-group, and with awareness of special treatment of the in-group by the outside world. Finally, issues are discussed concerning the cognitive construal of in-groups as well as the role of the individual self and the collective self for strategies of social mobility and social change.