title: Reciprocal Longitudinal Associations Between Adolescent Twin Gambling and Delinquency.
abstract: This study examined sibling influence over gambling involvement and delinquency in a sample of 628 twins (151 male dyads, 163 female dyads). Self-reports of gambling involvement and delinquency were collected for each twin at ages 13, 14 and 15 years. Results revealed evidence of between-twin influence. Higher levels of an adolescent's delinquency predicted an increase in his or her co-twin's delinquency from age 13 to age 14 and from age 14 to age 15. In contrast, gambling behavior was unaffected by the co-twin's gambling involvement. Within-twins, higher initial levels of delinquency predicted a subsequent increase in gambling behavior from age 13 to age 14 and again from age 14 to age 15, and higher initial levels of gambling involvement predicted an increase in delinquency from age 14 to age 15. Between and within siblings effects are discussed in light of the scant literature on (a) sibling influence on gambling, and (b) the links between gambling and delinquency.
authors: University of Montreal, Montreal, QC, Canada. Frank.Vitaro@umontreal.ca.
authors: Frank
authors: F
authors: Vitaro
authors: Florida Atlantic University, Boca Raton, FL, USA.
authors: Amy
authors: A
authors: C Hartl
authors: Florida Atlantic University, Boca Raton, FL, USA.
authors: Brett
authors: B
authors: Laursen
authors: University of Quebec, Montreal, QC, Canada.
authors: Mara
authors: M
authors: Brendgen
authors: Laval University, Quebec City, QC, Canada.
authors: Ginette
authors: G
authors: Dionne
authors: Laval University, Quebec City, QC, Canada.
authors: Michel
authors: M
authors: Boivin
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D004200:Diseases in Twins / Q000523:psychology*; D005260:Female; D005715:Gambling / Q000523:psychology*; D006801:Humans; D007604:Juvenile Delinquency / Q000523:psychology*; D008137:Longitudinal Studies; D008297:Male; D010379:Peer Group; D012307:Risk Factors; D035781:Siblings / Q000523:psychology*; D012907:Smoking / Q000523:psychology
keywords: Actor-partner interdependence model; Adolescents; Delinquency; Gambling; Sibling influence; Twins