Genetic and environmental variation on the California Psychological Inventory vector scales.
Three recently introduced vector scales for the California Psychological Inventory (CPI) were scored for the National Merit Twin Sample and subjected to a heredity-environment analysis. Confidence intervals for genetic and environmental parameters were obtained by a bootstrap method. Two of the scales, Internality (Vector 1) and Self-Realization (Vector 3), showed the substantial heritability and near-zero family environment effects typically found for personality scales, whereas Norm-Favoring (Vector 2) showed an appreciable effect of family environment and a nonsignificant heritability.
Loehlin
J C
JC
Department of Psychology, University of Texas, Austin 78712.
Gough
H G
HG
D000124:Achievement; D006801:Humans; D007389:Internal-External Control; D010553:Personality Development; D010555:Personality Inventory; D011594:Psychometrics; D012931:Social Environment; D014427:Twins / Q000235:genetics*; D014429:Twins, Dizygotic / Q000235:genetics* / Q000523:psychology; D014430:Twins, Monozygotic / Q000235:genetics* / Q000523:psychology