Neiss, Michelle, Stevenson, Jim, Sedikides, Constantine, Kumashiro, Madoka, Finkel, Eli J. and Rusbult, Caryl E.
Executive self, self-esteem and negative affectivity: relations at the phenotypic and genotypic level
Journal of Personality and Social Psychology, 89, (4), . (doi:10.1037/0022-35126.96.36.1993).
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Complementary approaches examined the relations among executive self, self-esteem, and negative affectivity. A cross-sectional (N = 4,242) and a longitudinal (N = 158) study established that self-esteem mediated the relation between executive self and negative affectivity. A 3rd study (N = 878 twin pairs) replicated this pattern and examined genetic and environmental influences underlying all 3 phenotypes. Covariation among the 3 phenotypes reflected largely common genetic influences, although unique genetic effects explained variability in both executive self and negative affectivity. Executive self was influenced by shared environmental influences unique from those affecting self-esteem and negative affectivity. Nonshared environmental influences accounted for the majority of variance in each construct and were primarily unique to each. The unique genetic and nonshared environmental influences support the proposition that the executive self, self-esteem, and negative affectivity capture distinct and important differences between people.
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