Naslov
Genetic and environmental contribution to social dominance orientation and its overlap with HEXACO personality traits: a twin study
(Genetic and environmental contribution to social dominance orientation and its overlap with HEXACO personality traits: a twin study)

Autori
Bratko, Denis ; Matić Bojić, Jelena ; Pocrnić, Martina

Izvornik
Psihologijske teme (1332-0742) 30 (2021), 1; 1-29

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
social dominance orientation (SDO) ; HEXACO ; personality ; heritability ; genetics ; twin study

Sažetak
Social dominance orientation (SDO), i.e. the preference toward egalitarian or hierarchically arranged relations within a society may be studied from social/contextual, but also dispositional perspective. The aim of the present study was to explore genetic and environmental contribution to the individual differences in SDO, and its overlap with HEXACO personality traits, both at phenotypic and latent genetic and environmental levels. The sample consisted of 830 Croatian twins aged from 19 to 28 years who filled-in the self-report measures. Data analyses indicated the heritability of SDO was over 40%, with no evidence for the common environmental influences. SDO phenotypic variance substantially overlapped with Honesty-Humility, Emotionality, and Openness domains. Numerous significant correlations were found at the facet level, with the highest phenotypic overlap for the “interstitial” altruism facet. However, incremental predictive power of personality (over age and sex) was moderate: 13% and 19% of the phenotypic SDO variance was predicted by HEXACO traits at the domains and facet levels, respectively. Multivariate behavioral genetic analysis indicated that 19% and 3% of the genetic and unique environmental variance of SDO overlapped with the genetic and unique environmental variance of personality, respectively. Substantial genetic correlations of SDO with Honesty-Humility and Openness domains were found, while marginal unique environmental correlation was found for Openness domain only. The etiological overlap between SDO and personality represents an argument in favor of taking dispositional along with social/contextual perspective in explaining social behavior.

Izvorni jezik
Engleski

Znanstvena područja
Psihologija

POVEZANOST RADA