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Sex Differences in the Etiology of Aggressive and Nonaggressive Antisocial Behavior: Results from Two Twin Studies
Author(s) -
Eley Thalia C.,
Lichtenstein Paul,
Stevenson Jim
Publication year - 1999
Publication title -
child development
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.103
H-Index - 257
eISSN - 1467-8624
pISSN - 0009-3920
DOI - 10.1111/1467-8624.00012
Subject(s) - etiology , psychology , bivariate analysis , developmental psychology , antisocial personality disorder , checklist , twin study , clinical psychology , poison control , injury prevention , heritability , psychiatry , medicine , genetics , statistics , mathematics , biology , cognitive psychology , environmental health
Recent theory and results from twin and adoption studies of children and adolescents suggest greater genetic influence on aggressive as compared to nonaggressive antisocial behavior. In addition, quantitative or qualitative differences in the etiology of these behaviors in males and females have been indicated in the literature. The Child Behavior Checklist was completed by the parents of 1022 Swedish twin pairs aged 7–9 years and of 501 British twin pairs aged 8–16 years. Genetic factors influenced aggressive antisocial behavior to a far greater extent than nonaggressive antisocial behavior, which was also significantly influenced by the shared environment. There was a significant sex difference in the etiology of nonaggressive antisocial behavior. Bivariate analyses supported the conclusion that the etiologies of aggressive and nonaggressive antisocial behavior differ for males and females.