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Prior work has elucidated associations of family (i.e., in-group) violence exposure in childhood with risk for internalizing symptoms through weakened implicit favoritism for novel in-group members. In the present study, we probe whether childhood violence exposure influences implicit bias and psychopathology differentially depending on the participant\u2019s relationship with the perpetrator (i.e., in-group vs. out-group member) at the time of exposure. We administered a minimal group-assignment paradigm and implicit-association test to 455 young adults ages 18 to 25. Young adults who experienced out-group violence in childhood showed stronger implicit in-group favoritism compared with participants who experienced in-group violence or no violence. Implicit out-group favoritism was associated with increased alcohol use. Early life experiences may shape innate preferences for novel in-group members versus out-group members in ways that have lasting implications for mental health.<\/jats:p>","DOI":"10.1177\/21677026251386411","type":"journal-article","created":{"date-parts":[[2025,11,17]],"date-time":"2025-11-17T04:54:57Z","timestamp":1763355297000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Childhood Violence Exposure and Social Information Processing in Young Adults: Does Relationship With the Perpetrator Matter?"],"prefix":"10.1177","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6078-9328","authenticated-orcid":false,"given":"Steven W.","family":"Kasparek","sequence":"first","affiliation":[{"name":"Department of Psychology, Harvard University, Cambridge, Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6612-4474","authenticated-orcid":false,"given":"Mina","family":"Cikara","sequence":"additional","affiliation":[{"name":"Department of Psychology, Harvard University, Cambridge, Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7430-0853","authenticated-orcid":false,"given":"Mark L.","family":"Hatzenbuehler","sequence":"additional","affiliation":[{"name":"Department of Psychology, Harvard University, Cambridge, Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katie A.","family":"McLaughin","sequence":"additional","affiliation":[{"name":"The Ballmer Institute for Children\u2019s Behavioral Health, University of Oregon, Portland, Oregon"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2025,11,16]]},"reference":[{"key":"e_1_3_3_2_1","volume-title":"The nature of prejudice","author":"Allport G. 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