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Selected Works of Andrew M. Johnson
Article
Individual Differences in Multiple Dimensions of Aggression: A Univariate and Multivariate Genetic Analysis
Twin Research (1999)
  • Philip A. Vernon, The University of Western Ontario
  • Julie M. McCarthy, The University of Western Ontario
  • Andrew M. Johnson, The University of Western Ontario
  • Kerry L. Jang, University of British Columbia
  • Julie Aitken Harris, The University of Western Ontario
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Abstract
Previous behaviour genetic studies of aggression have yielded inconsistent results: reported heritabilities for different types of aggressive behaviour ranging from 0 to 0.98. In the present study, 247 adult twin pairs (183 MZ pairs; 64 same-sex DZ pairs) were administered seven self-report questionnaires which yielded 18 measures of aggression. Univariate genetic analyses showed moderate to high heritabilities for 14 of these 18 measures and for a general aggression factor and three correlated aggression factors extracted from the measures. Multivariate genetic analyses showed sizeable genetic correlations between the different dimensions of aggression. Thus, individual differences in many types of aggressive behaviour are attributable to some extent to genetic factors and there is considerable overlap between the genes that operate on different types of aggressive behaviour.
Keywords
  • Aggression,
  • Analysis of Variance,
  • Anger,
  • Antisocial Personality Disorder,
  • Attitude,
  • Hostility,
  • Impulsive Behavior,
  • Mood Disorders,
  • Multivariate Analysis,
  • Questionnaires,
  • Self-Assessment,
  • Self-Injurious Behavior,
  • Dizygotic Twins,
  • Monozygotic Twins,
  • Verbal Behavior,
  • Violence
Disciplines
Publication Date
March, 1999
Citation Information
Philip A. Vernon, Julie M. McCarthy, Andrew M. Johnson, Kerry L. Jang, et al.. "Individual Differences in Multiple Dimensions of Aggression: A Univariate and Multivariate Genetic Analysis" Twin Research Vol. 2 Iss. 1 (1999)
Available at: http://works.bepress.com/andrewjohnson/23/