Participants (N = 236 in models that included multiple G2 siblings; N = 110 in models without siblings) were drawn from a larger sample of at-risk (i.e., alcoholic) and comparison families followed longitudinally for over 30 years and across three generations. Four mediation models were estimated to examine effects of two separate G1-G2 family disruption components (deviance-related and health-related disruption) on parenting of G3, mediated by family conflict, family disorganization, and G2 dysregulation. Results indicated that health-related disruption impairs consistency of parenting provided to G3 offspring through conflict in the G1-G2 family. A direct effect of health-related disruption was also seen on parental monitoring. There were no direct or mediated effects of deviance-related disruption on parenting. Implications and future directions will be discussed.
Prior research has established a relation between parenting behaviors and symptoms of child psychopathology, and this association may be influenced by both genetic and environmental factors. Gene-environment correlation, or the influence of a child’s genes on the environment they receive, represents one possible mechanism through which genes and environment combine to influence child outcomes. This study examined evocative gene-environment correlation in the relation between parenting and symptoms of child psychopathology in a sample of 676 twins (51.5% female, 58.5% Caucasian, 23.7% Hispanic/Latinx, primarily middle class, MAge=8.43, SD=.62) recruited from Arizona birth records. Using univariate ACE twin biometric models, genetic influences were found to moderately contribute to internalizing symptoms (A=.47, C=.25, E=.28), while externalizing (A=.86, E=.14) and ADHD (A=.84, E=.16) symptoms were found to be highly heritable. The genetic influences for positive (C=.54, E=.46) and negative (C=.44, E=.56) parenting were smaller and found to be nonsignificant. The correlations between parenting and types of psychopathology were examined and bivariate Cholesky decompositions were conducted for statistically significant correlations. Negative parenting was moderately positively correlated with externalizing and ADHD symptoms; the relation between externalizing symptoms and negative parenting was found to be due to shared genetics, whereas the relation between negative parenting and ADHD symptoms was due to the shared environment. The mixed results regarding the role of gene environment correlation in relations between parenting and child psychopathology indicate that further research on the mechanisms of this relation is needed.