The Eysenck personality factors: psychometric structure, reliability, heritability and phenotypic and genetic correlations with psychological distress in an isolated Croatian population

Ivković, Vladimir and Vitart, Veronique and Rudan, Igor and Janićijević, Branka and Smolej-Narančić, Nina and Škarić-Jurić, Tatjana and Barbalić, Maja and Polašek, Ozren and Kolčić, Ivana and Biloglav, Zrinka and Visscher, Peter and Hayward, Caroline and Hastie, Nicholas and Anderson, Niall and Campbell, Harry and Wright, Alan F. and Rudan, Pavao and Deary, Ian J. (2007) The Eysenck personality factors: psychometric structure, reliability, heritability and phenotypic and genetic correlations with psychological distress in an isolated Croatian population. Personality and Individual Differences, 42 (1). pp. 123-133. ISSN 0191-8869

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Abstract

We report the psychometric structure of a Croatian translation of the Eysenck Personality Questionnaire-Revised (short-form), its correlations with psychological distress (General Health Questionnaire-30), its heritability, and personality–psychological distress genetic correlations. The setting is a large (≈1000), family-based sample of men and women from an isolated Croatian island. The neuroticism and extraversion traits and the lie scale showed good psychometric characteristics. The translated psychoticism scale was unsatisfactory in this sample. It had a very low internal consistency, probably due in part to heavily biased item responses. There were significant additive genetic contributions to variation in neuroticism, extraversion, and psychological distress. Psychological distress had a very high genetic correlation with neuroticism, and a moderate genetic correlation with extraversion.

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