What can we learn from the study of twins about genetic and environmental influences on interpersonal affiliation, aggressiveness, and social anxiety?

A meta-analytic study

Michael Beatty, Alan D. Heisel, Alice E. Hall, Timothy R. Levine, Betty H. La France

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Over the past ten years, studies comparing monozygotic (identical) and dizygotic (fraternaal) twin pairs in terms of intelligence, personality, and social behavior have increasingly appeared in major research journals. Importantly, many of the variables examined are central constructs in communication theory. Assertiveness, social anxiety, self-monitoring, and empathy are but a few of the variables studied in the twins literature. In the present study, mean heritability estimates for three clusters (interpersonal affiliation, aggressiveness, and social anxiety) were computed. The studies selected for analysis focused on variables that have been frequently cited in mainstream reference texts and/or professional journals in communication. Conservative data analytic procedures were adopted. Specifically, (1) unless evidence of additive gene effects was absolute, nonadditive gene effects were assumed; (2) unless reliability coefficients were reported in a study, the highest reliability reported in the literature for the measure was employed in correction procedures; and (3) observer ratings, although imperfect, were not corrected for attenuation due to error in measurement. Results indicated that interpersonal affiliation was 70% heritable, aggressiveness was 58% heritable, and social anxiety was 65% heritable. Notably, heritability estimates were not larger for self-report measures than for behavioral observation. Criticisms of the twins design, possible moderators, and theoretical implications are discussed.

Original languageEnglish (US)
Pages (from-to)1-18
Number of pages18
JournalCommunication Monographs
Volume69
Issue number1
DOIs
StatePublished - 2002
Externally publishedYes

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aggressiveness
Genes
anxiety
Moderators
Information theory
communication theory
scientific journal
moderator
social behavior
empathy
Monitoring
intelligence
Communication
personality
criticism
rating
monitoring
communication
evidence
Environmental Influences

ASJC Scopus subject areas

  • Communication
  • Language and Linguistics

Cite this

What can we learn from the study of twins about genetic and environmental influences on interpersonal affiliation, aggressiveness, and social anxiety? A meta-analytic study. / Beatty, Michael; Heisel, Alan D.; Hall, Alice E.; Levine, Timothy R.; La France, Betty H.

In: Communication Monographs, Vol. 69, No. 1, 2002, p. 1-18.

Research output: Contribution to journalArticle

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