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

doi:10.1002/ejsp.2420200606

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 journal › Comment/debate › peer-review

18 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 language	English
Pages (from-to)	519-523
Number of pages	5
Journal	European Journal of Social Psychology
Volume	20
Issue number	6
DOIs	https://doi.org/10.1002/ejsp.2420200606
Publication status	Published - 1990
Externally published	Yes

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10.1002/ejsp.2420200606

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

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.",

author = "Bernd Simon and Pawel Mlicki and Lucy Johnston and Antonio Caetano and Miroslaw Warowicki and \{Van Knippenberg\}, Ad and Richard Deridder",

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AU - Simon, Bernd

AU - Mlicki, Pawel

AU - Johnston, Lucy

AU - Caetano, Antonio

AU - Warowicki, Miroslaw

AU - Van Knippenberg, Ad

AU - Deridder, Richard

PY - 1990

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N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84985846008

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DO - 10.1002/ejsp.2420200606

M3 - Comment/debate

AN - SCOPUS:84985846008

SN - 0046-2772

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EP - 523

JO - European Journal of Social Psychology

JF - European Journal of Social Psychology

IS - 6

ER -

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

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