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Subjective Uncertainty and Intergroup Discrimination in the Minimal Group Situation

Griffith University, p.grieve{at}gu.edu.au

Michael A. Hogg

University of Queensland, m.hogg{at}psy.uq.edu.au

Minimal group studies are sometimes interpreted as showing that social categorization per se inevitably produces discrimination. Self-categorization theory clarifies this point, suggesting that a process of self-categorization must occur to transform an external categorization into an internalized representation. Hogg and Abrams suggest that the underlying motive for self-categorization is the reduction of subjective uncertainty. Two minimal group experiments employing different manipulations of uncertainty were conducted in which categorization and subjective uncertainty were manipulated in a 2x2 design. Across both studies, as hypothesized, intergroup discrimination only occurred when participants were categorized under conditions of subjective uncertainty. This was accompanied by enhanced group identification and elevated self-esteem. It is concluded that categorization per se is necessary but not sufficient for discrimination—people must self-categorize, and this is motivated by a need for subjective uncertainty reduction. Discrimination is not an inevitable outcome of categorization.

Personality and Social Psychology Bulletin, Vol. 25, No. 8, 926-940 (1999)
DOI: 10.1177/01461672992511002


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