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Genes, culture and conservatism: A psychometric-genetic approach
Schwabe,I. Jonker,Wilfried Van Den Berg,Stéphanie M.
Schwabe,I.
Jonker,Wilfried
Van Den Berg,Stéphanie M.
Abstract
The Wilson-Patterson conservatism scale was psychometrically evaluated using homogeneity analysis and item response theory models. Results showed that this scale actually measures two different aspects in people: on the one hand people vary in their agreement with either conservative or liberal catch-phrases and on the other hand people vary in their use of the ‘‘?’’ response category of the scale. A 9-item subscale was constructed, consisting of items that seemed to measure liberalism, and this subscale was subsequently used in a biometric analysis including genotype–environment interaction, correcting for non-homogeneous measurement error. Biometric results showed significant genetic and shared environmental influences, and significant genotype–environment interaction effects, suggesting that individuals with a genetic predisposition for conservatism show more non-shared variance but less shared variance than individuals with a genetic predisposition for liberalism.
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2016-07-01
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Schwabe, I, Jonker, W & Van Den Berg, S M 2016, 'Genes, culture and conservatism : A psychometric-genetic approach', Behavior Genetics, vol. 46, no. 4, pp. 516-528. https://doi.org/10.1007/s10519-015-9768-9