Nonshared environmental effects on adulthood psychopathic personality traits: Results from a monozygotic twin difference scores analysis

Kevin M. Beaver, Michael G. Vaughn, Matt Delisi

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

An emerging body of empirical research has revealed that nonshared environmental factors are associated with explaining variance in measures of psychopathy and psychopathic personality traits. The current study adds to this existing knowledge base by analyzing a measure of psychopathy derived, in part, from the five factor model in a sample of monozygotic (MZ) twin pairs drawn from the National Longitudinal Study of Adolescent Health. The results of the MZ twin difference scores analysis revealed that nonshared environmental factors found within the family were unrelated to between-twin differences in psychopathic personality traits. Only one nonshared factor - levels of self-control - consistently predicted psychopathy. We conclude by discussing the implications of our findings and the limitations of our study.

Original languageEnglish
Pages (from-to)381-393
Number of pages13
JournalPsychiatric Quarterly
Volume84
Issue number3
DOIs
Publication statusPublished - 2013 Sep

All Science Journal Classification (ASJC) codes

  • Psychiatry and Mental health

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