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The effects of ingroup and outgroup homogeneity on ingroup favouritism, stereotyping and overestimation of relative ingroup size
Author(s) -
Simon Bernd,
Mlicki Pawel,
Johnston Lucy,
Caetano Antonio,
Warowicki Miroslaw,
Van Knippenberg Ad,
Deridder Richard
Publication year - 1990
Publication title -
european journal of social psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 111
eISSN - 1099-0992
pISSN - 0046-2772
DOI - 10.1002/ejsp.2420200606
Subject(s) - ingroups and outgroups , outgroup , psychology , social psychology , homogeneity (statistics) , homogeneous , in group favoritism , developmental psychology , social group , social identity theory , mathematics , combinatorics , statistics
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.