Twin Research and Human Genetics

Articles

Phenotypic, Genetic, and Environmental Properties of the Portrait Values Questionnaire

Julie Aitken Schermera1 c1, N. T. Feathera2, Gu Zhua3 and Nicholas G. Martina4

a1 Management and Organizational Studies, Faculty of Social Science, The University of Western Ontario, Canada. jharris@uwo.ca

a2 School of Psychology, Flinders University, Australia.

a3 Genetic Epidemiology Unit, Queensland Institute of Medical Research, Australia.

a4 Genetic Epidemiology Unit, Queensland Institute of Medical Research, Australia.

Abstract

The purpose of the present study was to examine the 10 value types from the Portrait Values Questionnaire (PVQ; Schwartz et al., 2001) both at the phenotypic (observed) level as well as the genetic and environmental level. Australian twins (N = 695) completed the PVQ as part of a larger questionnaire battery. Nine of the value types were found to have a genetic component with heritability estimates ranging from 10.8% for power to 38% for conformity. The achievement scale was best explained by environmental factors. The interscale correlations were found to range from –.02 to .70 at the phenotypic level. Of these 45 correlations, 16 were found to be explained by overlapping genetic factors and almost all (41) were found to have significant unique environment correlations.

(Received May 22 2008)

(Accepted June 05 2008)

Keywords

  • values;
  • genetics;
  • environment

Correspondence:

c1 Address for correspondence: Julie Aitken Schermer, Management and Organizational Studies, Faculty of Social Science, The University of Western Ontario, London, ON, Canada N6G 2R5.

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