The spread of substance use and delinquency between adolescent twins.

Dev Psychol 2017 Feb 10;53(2):329-339. Epub 2016 Nov 10.

École de psychologie, Université Laval.

This investigation examines the spread of problem behaviors (substance use and delinquency) between twin siblings. A sample of 628 twins (151 male twin pairs and 163 female twin pairs) drawn from the Quebec Newborn Twin Study completed inventories describing delinquency and substance use at ages 13, 14, and 15. A 3-wave longitudinal actor-partner interdependence model (APIM) identified avenues whereby problem behaviors spread from one twin to another. Problems did not spread directly between twins across domains. Instead, 2 indirect pathways were identified: (a) Problems first spread interindividually (between twins) within a behavioral domain, then spread intraindividually (within twins) across behavioral domains (e.g., Twin A delinquency → Twin B delinquency → Twin B substance use); and (b) problems first spread intraindividually (within twins) across behavioral domains, then spread interindividually (between twins) within a behavioral domain (e.g., Twin A delinquency → Twin A substance use → Twin B substance use). Controls for genetic effects, gene-environment correlations, friend substance use and delinquency, and parenting behaviors increase confidence in the conclusion that twin siblings uniquely contribute to the spread of problem behaviors during adolescence. Twin sibling influence is a risk factor for illicit substance use, both because substance use by one twin predicts substance use by the other twin, but also because delinquency in one twin predicts delinquency in the other twin, which then gives rise to greater substance use. (PsycINFO Database Record

Download full-text PDF

Source
http://dx.doi.org/10.1037/dev0000217DOI Listing
February 2017
14 Reads

Publication Analysis

Top Keywords

twin
17
twin delinquency
16
→ twin
16
twins behavioral
16
problem behaviors
12
delinquency twin
12
twin substance
12
problems spread
12
delinquency →
12
substance delinquency
12
substance
10
spread
9
delinquency
9
behavioral domain
8
spread interindividually
8
twin predicts
8
substance twin
8
interindividually twins
8
twin siblings
8
spread intraindividually
8

Similar Publications