The aim of this study is to show that, when examining social identification, it is both possible and important to distinguish between self-categorisation, commitment to the group, and group self-esteem, as related but separate aspects of group members' social identity. This was demonstrated in an experiment (N ˆ 119), in which Ingroup Status (high/low), Ingroup Size (majority/minority), and Group Formation (self-selected/ assigned group membership) were manipulated orthogonally. The results of this study confirm that these three aspects of social identity can be distinguished as separate factors in a principal components analysis. Furthermore, as predicted, the three aspects are di€erentially related to manipulated group features, as well as displays of ingroup favouritism. Group members' self-categorisations were only aff€ected by the relative size of the group, while group self-esteem was only influenced by group status. A€ective commitment to the group depended both on group status and on the group assignment criterion. Importantly, only the group commitment aspect of social identity mediated displays of ingroup favouritism.
|Number of pages||11|
|Journal||European Journal of Social Psychology|
|Publication status||Published - 1999|