Social identity, group norms, and deindividuation: Lessons from computer-mediated communication for social influence in the group

This chapter reviews a program of research that has developed around the Social Identity model of Deindividuation Effects (SIDE; Lea & Spears, 1991; Postmes & Spears, 1998; Postmes, Spears, & Lea, 1998; Reicher, Spears, & Postmes, 1995; Spears & Lea, 1992; 1994). In particular, we review intra-group processes in private and public settings in order to advance our understanding of normative influence in groups.