The effects of ingroup and outgroup homogeneity on ingroup favouritism, stereotyping and overestimation of relative ingroup size

Bernd Simon, Pawel Mlicki, Lucy Johnston, Antonio Caetano, Miroslaw Warowicki, Ad Van Knippenberg, Richard Deridder

Research output: Contribution to journalComment/debatepeer-review

15 Citations (Scopus)

Abstract

An experiment (n = 61) investigated the effects of ingroup and outgroup homogeneity on ingroup favouritism, stereotyping and the overestimation of relative ingroup size. As predicted, outgroup homogeneity was conducive to ingroup favouritism. Ingroup homogeneity, however, failed to influence ingroup favouritism. Also unexpectedly, asymmetry in group homogeneity — irrespective of whether the ingroup or the outgroup was the more homogeneous group — led to pronounced stereotyping of both groups and to the overestimation of relative ingroup size.

Original languageEnglish
Pages (from-to)519-523
Number of pages5
JournalEuropean Journal of Social Psychology
Volume20
Issue number6
DOIs
Publication statusPublished - 1990
Externally publishedYes

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