title: Symptom-based subfactors of DSM-defined conduct disorder: evidence for etiologic distinctions.
abstract: Past research investigating the structure of conduct disorder (CD) symptoms has provided evidence of a phenotypic distinction between aggressive and rule-breaking subfactors of CD. However, evidence of etiologic distinctions between these subfactors has not been reported to date. In the current study, the authors investigated this issue in a sample of 1,151 male twins who were 17 years of age. The results indicate that aggressive and rule-breaking CD subfactors have both common and distinct etiologic influences, with shared environmental influences playing a significant role in rule-breaking behaviors. The authors discuss implications of these findings for the assessment and treatment of CD.
authors.affiliation: Department of Psychology, University of Minnesota, Twin Cities Campus, Minneapolis, MN 55455, USA. tack0009@umn.edu
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: Tackett
authors.forename: Robert F
authors.initials: RF
authors.lastname: Krueger
authors.forename: William G
authors.initials: WG
authors.lastname: Iacono
authors.forename: Matt
authors.initials: M
authors.lastname: McGue
mesh_terms: D000293:Adolescent; D000374:Aggression / Q000523:psychology*; D000987:Antisocial Personality Disorder / Q000175:diagnosis / Q000235:genetics* / Q000523:psychology; D015331:Cohort Studies; D019955:Conduct Disorder / Q000175:diagnosis / Q000235:genetics* / Q000523:psychology; D039721:Diagnostic and Statistical Manual of Mental Disorders; D004200:Diseases in Twins / Q000235:genetics* / Q000523:psychology; D006801:Humans; D007604:Juvenile Delinquency / Q000523:psychology; D008137:Longitudinal Studies; D008297:Male; D012307:Risk Factors; D012925:Social Conformity; D012931:Social Environment