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Heritability of the Big Five Personality Dimensions and Their Facets: A Twin Study
Author(s) -
Jang Kerry L.,
Livesley W. John,
Vemon Philip A.
Publication year - 1996
Publication title -
journal of personality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.082
H-Index - 144
eISSN - 1467-6494
pISSN - 0022-3506
DOI - 10.1111/j.1467-6494.1996.tb00522.x
Subject(s) - heritability , psychology , agreeableness , facet (psychology) , conscientiousness , openness to experience , personality , neuroticism , twin study , big five personality traits , extraversion and introversion , developmental psychology , hierarchical structure of the big five , variance (accounting) , big five personality traits and culture , alternative five model of personality , personality assessment inventory , social psychology , genetics , accounting , biology , business
The genetic and environmental etiology of the five‐factor model of personality as measured by the revised NEO Personality Inventory (NEO‐PI‐R) was assessed using 123 pairs of identical twins and 127 pairs of fraternal twins. Broad genetic influence on the five dimensions of Neuroticism, Extraversion, Openness, Agreeableness, and Conscientiousness was estimated at 41%, 53%, 61%, 41%, and 44%, respectively. The facet scales also showed substantial heritability, although for several facets the genetic influence was largely nonadditive. The influence of the environment was consistent across all dimensions and facets. Shared environmental influences accounted for a negligible proportion of the variance in most scales, whereas nonshared environmental influences accounted for the majority of the environmental variance in all scales.