TY - JOUR
T1 - Sex differences and nonadditivity in heritability of the multidimensional personality questionnaire scales
AU - Finkel, Deborah
AU - McGue, Matt
PY - 1997/4
Y1 - 1997/4
N2 - A sex-limitation model was applied to the Multidimensional Personality Questionnaire (MPQ) data from the Minnesota Twin Family Registry. The sample included 626 monozygotic (MZ) twin pairs, 517 same-sex dizygotic (DZ) twin pairs, and 114 opposite-sex DZ twin pairs ranging in age from 27 to 64 years (mean age = 37.8). In addition, whenever possible, family members of the twins were also assessed: 1,690 spouses, 495 parents, 322 siblings, and 535 offspring. The goals of the present investigation were to analyze the covariance matrices to determine whether (a) there was evidence for sex limitation of heritability of the MPQ scales and (b) there was evidence for nonadditive genetic influences on these scales. Significant sex differences in heritability were found for 3 of the scales: Alienation, Control, and Absorption. In addition, evidence for dominance was found for all scales except Traditionalism and Absorption.
AB - A sex-limitation model was applied to the Multidimensional Personality Questionnaire (MPQ) data from the Minnesota Twin Family Registry. The sample included 626 monozygotic (MZ) twin pairs, 517 same-sex dizygotic (DZ) twin pairs, and 114 opposite-sex DZ twin pairs ranging in age from 27 to 64 years (mean age = 37.8). In addition, whenever possible, family members of the twins were also assessed: 1,690 spouses, 495 parents, 322 siblings, and 535 offspring. The goals of the present investigation were to analyze the covariance matrices to determine whether (a) there was evidence for sex limitation of heritability of the MPQ scales and (b) there was evidence for nonadditive genetic influences on these scales. Significant sex differences in heritability were found for 3 of the scales: Alienation, Control, and Absorption. In addition, evidence for dominance was found for all scales except Traditionalism and Absorption.
UR - http://www.scopus.com/inward/record.url?scp=0031116046&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031116046&partnerID=8YFLogxK
U2 - 10.1037/0022-3514.72.4.929
DO - 10.1037/0022-3514.72.4.929
M3 - Article
C2 - 9108705
AN - SCOPUS:0031116046
SN - 0022-3514
VL - 72
SP - 929
EP - 938
JO - Journal of personality and social psychology
JF - Journal of personality and social psychology
IS - 4
ER -