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

Vladimir Ivkovic, Veronique Vitart, Igor Rudan, Branka Janicijevic, Nina Smolej-Narancic, Tatjana Skaric-Juric, Maja Barbalic, Ozren Polasek, Ivana Kolcic, Zrinka Biloglav, Peter M. Visscher, Caroline Hayward, Nicholas D. Hastie, Niall Anderson, Harry Campbell, Alan F. Wright, Pavao Rudan, Ian J. Deary

Research output: Contribution to journalArticlepeer-review

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 (approximate to 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. (c) 2006 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)123-133
Number of pages11
JournalPersonality and Individual Differences
Volume42
Issue number1
DOIs
Publication statusPublished - Jan 2007

Keywords

  • personality
  • neuroticism
  • extraversion
  • depression
  • EPQ
  • GHQ
  • heritability
  • genetics
  • Croatia
  • GENOME-WIDE ASSOCIATION
  • LINKAGE ANALYSIS
  • TRAIT
  • NEUROTICISM
  • DEPRESSION
  • EPIDEMIOLOGY
  • PSYCHOTICISM
  • PEDIGREES
  • PROSPECTS
  • FAMILY

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