The Out-Group Homogeneity Effect Across Development: A Cross-Cultural Investigation

Reut Shilo, Anika Weinsdörfer, Hannes Rakoczy, Gil Diesendruck

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


The present studies investigated the out-group homogeneity effect in 5- and 8-year-old Israeli and German children (n = 150) and adults (n = 96). Participants were asked to infer whether a given property (either biological or psychological) was true of an entire group—either the participants' in-group (“Jews” or “Germans”) or their out-group (“Arabs” or “Turks”). To that end, participants had to select either a homogenous or a heterogeneous sample of group members. It was found that across ages and countries, participants selected heterogeneous samples less often when inferring the biological properties of out-compared to in-group members. No effect was found regarding psychological properties. These findings have important implications for our understanding of the origins of intergroup bias.

Original languageEnglish
Pages (from-to)2104-2117
Number of pages14
JournalChild Development
Issue number6
StatePublished - 1 Nov 2019

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Publisher Copyright:
© 2018 Society for Research in Child Development


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