Twin studies have demonstrated that personality traits show moderate genetic influence.
The conclusions drawn from twin studies rely on the assumptions that twins are …

Measures of four dimensions of personality (Psychoticism, Extraversion, Neuroticism, and
Lie scores) and six aspects of social attitudes (to sex, taxation, militarism, politics, religion …

The consistency of twin data with personality questionnaires is examined using all reported
twin samples which have been administered the California Psychological Inventory. The …

We administered the Multidimensional Personality Questionnaire (MPQ) to 217 monozygotic
and 114 dizygotic reared-together adult twin pairs and 44 monozygotic and 27 dizygotic …

Recent studies have demonstrated substantial correlations between normal and abnormal
personality traits. Yet little is known about how these correlations are mediated genetically …

Personality Differences and Biological Variations: A Study of Twins details a study aimed to
discover the genetic uniqueness of twins and the biological basis of their individual …

Abstract This report presents Minnesota Multiphasic Personality Inventory (MMPI) findings
from the Minnesota Study of Twins Reared Apart. Data from 65 unique pairs of monozygotic …

W HEN Oskar Stohr and Jack Yufe arrived in Minneapolis to partici-pate in University of
Minnesota psychologist Thomas J. Bouchard, Jr.'s study of identical twins reared apart, they …

Similarities for Extraversion (E) and Neuroticism (N) scale scores from the Eysenck
Personality Inventory were evaluated in 7,144 adult twin pairs, drawn from the population …

Twin psychology has been studied to a very limited extent. Only few remarkable peculiarities
of the twins' development are known for sure, such as delayed intellectual development …