Differential parenting and risk for psychopathology: a monozygotic twin difference approach
- 668 Downloads
Consistent and non-specific associations have been found between parenting style and major depression, anxiety disorders, and externalizing behavior. Although often considered part of twins’ shared environment, parenting can also be conceptualized as non-shared environment. Non-shared environmental influences have important effects on development but are difficult to test and sort out because of the possible confounding effects of gene-environment interactions and evocative gene-environment correlations. The monozygotic (MZ) differences approach is one way to analytically investigate non-shared environment.
The aim of the present study is to use the MZ differences approach to investigate the relationship between differential parenting among 1303 twin pairs (mean age 36.69 ± 8.56) and differences in total symptom counts of major depression (MD), generalized anxiety disorder (GAD), conduct disorder (CD), and anti-social behavior (ASB) during adulthood.
Although effect sizes tended to be small, a number of results were significantly different from zero. Perceived differences in parental coldness was positively associated with internalizing disorders. Differences in protectiveness were negatively associated with MD, GAD, and ASB. Differences in authoritarianism were positively associated with MD and CD, but negatively associated with ASB.
Perceived differences in parenting style are associated with differences in MD, GAD, CD, and ASB outcomes in a sample of MZ twins. Despite the lack of a basis for making causal inferences about parenting style and psychopathology, these results are suggestive of such a relationship and show that non-shared environmental influence of parenting does in some cases significantly predict adult psychopathology.
KeywordsNon-shared environment Differential parenting Psychopathology MZ twin differences
Conflict of interest
On behalf of all authors, the corresponding author states that there are no conflicts of interest.
- 6.McLeod BD, Wood JJ, Weisz JR (2007) Examining the association between parenting and childhood anxiety: a meta-anaylsis. Clin Psychol Rev 10:253–274Google Scholar
- 20.Kendler KS, Prescott CA (2006) Genes, environment and psychopathology: understanding the causes of psychiatric and substance use disorders. The Guildford Press, New YorkGoogle Scholar
- 23.Spitzer RL, Williams JBW (1985) Structured clinical interview for DSM-III-R (SCID). Biometrics Research Department, New York State Psychiatric Institute, New YorkGoogle Scholar
- 27.Parker G (1989) The parental bonding instrument: psychometric properties reviewed. Psychiatr Dev 4:317–335Google Scholar