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We investigated the strength of identity-driven ingroup overexclusion\u2013wherein highly identified perceivers overexclude ambiguous members from the ingroup\u2013proposing that, compared with dichotomous tasks (with only the ingroup and one outgroup), tasks with more outgroups attenuate identity-driven ingroup overexclusion (a dilution effect). Fourteen studies ( n = 4,001) measured White Americans\u2019 racial identification and their categorizations of ambiguous faces and manipulated the categorization task to have two groups, three groups, or an unspecified number of groups (open-ended). In all three conditions, participants overexcluded faces from the White category on average. There was limited support for the dilution effect: identity-driven ingroup overexclusion was absent in the three-group task and only weakly supported in the open-ended task. The presence of multiple outgroups may dampen the impact of racial identity on race perceptions among White Americans.<\/jats:p>","DOI":"10.1177\/01461672231190264","type":"journal-article","created":{"date-parts":[[2023,8,10]],"date-time":"2023-08-10T02:57:25Z","timestamp":1691636245000},"page":"301-313","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Intergroup Context Moderates the Impact of White Americans\u2019 Identification on Racial Categorization of Ambiguous Faces"],"prefix":"10.1177","volume":"51","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9347-3816","authenticated-orcid":false,"given":"Jacqueline M.","family":"Chen","sequence":"first","affiliation":[{"name":"The University of Utah, Salt Lake City, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7755-5413","authenticated-orcid":false,"given":"Chanel","family":"Meyers","sequence":"additional","affiliation":[{"name":"University of Oregon, Eugene, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kristin","family":"Pauker","sequence":"additional","affiliation":[{"name":"University of Hawai\u2018i at Manoa, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sarah E.","family":"Gaither","sequence":"additional","affiliation":[{"name":"Duke University, Durham, NC, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David L.","family":"Hamilton","sequence":"additional","affiliation":[{"name":"University of California, Santa Barbara, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jeffrey W.","family":"Sherman","sequence":"additional","affiliation":[{"name":"University of California, Davis, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2023,8,9]]},"reference":[{"key":"bibr1-01461672231190264","volume-title":"The nature of prejudice","author":"Allport G. 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