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The objective of this study was to examine these claims by investigating whether, and why, fathers in a Colombian sample physically abused their stepchildren more than their genetic children. Fathers (\n                    <jats:italic toggle=\"yes\">N<\/jats:italic>\n                    = 86) and their partners living in Bogot\u00e1 were interviewed by Klevens et al. Half of the fathers had been reported to authorities for child physical abuse, the other half were matched controls. Secondary analysis was conducted of Klevens et al.\u2019s data. Hypotheses from the evolutionary and ecological accounts of child maltreatment were tested using logistic and ordinal regression. Both the prevalence and the frequency of physical abuse by stepfathers were considerably greater than those of genetic fathers. Several indicators of adversity\u2014including parental youth and experience of abuse, fathers\u2019 chronic stress, and mothers\u2019 poor communication with the child\u2014were associated with both abuse and stepparenthood. Models including these variables indicated that they accounted for much of the stepfathers\u2019 higher rates of abuse. Consistent with the ecological account, much of the stepfathers\u2019 greater prevalence and frequency of abuse in this sample is likely to have resulted from confounding variables, rather than from the step relationship per se.\n                  <\/jats:p>","DOI":"10.1177\/0886260520912585","type":"journal-article","created":{"date-parts":[[2020,4,13]],"date-time":"2020-04-13T09:27:12Z","timestamp":1586770032000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Physical Abuse of Children by Stepfathers in Colombia"],"prefix":"10.1177","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1991-1130","authenticated-orcid":false,"given":"Gavin","family":"Nobes","sequence":"first","affiliation":[{"name":"University of East Anglia, Norwich, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Georgia","family":"Panagiotaki","sequence":"additional","affiliation":[{"name":"University of East Anglia, Norwich, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Catia","family":"Malvaso","sequence":"additional","affiliation":[{"name":"The University of Adelaide, South Australia, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joanne","family":"Klevens","sequence":"additional","affiliation":[{"name":"Universidad del Bosque, Bogot\u00e1, Colombia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2020,4,13]]},"reference":[{"key":"e_1_3_5_2_1","doi-asserted-by":"crossref","unstructured":"Adams T. 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