Evidence for a major role of genetic factors in the determination of body mass index (BMI)
comes from studies of related individuals. Despite consistent evidence for a heritable …

OBJECTIVE: The authors conducted meta-analyses of data from family and twin studies of
panic disorder, generalized anxiety disorder, phobias, and obsessive-compulsive disorder …

The aims of the present review are to apply a recent risk factor approach (HC Kraemer et al.,
1997) to putative risk factors for eating disorders, to order these along a timeline, and to …

We explored the effect of having a creative personality on the identification of business
opportunities and the tendency to start businesses. Examining a sample of 3242 twins from …

Objective: The anxiety and depressive disorders exhibit high levels of lifetime comorbidity
with one another. The authors examined how genetic and environmental factors shared by …

The study of continuously varying, quantitative traits is important in evolutionary biology,
agriculture, and medicine. Variation in such traits is attributable to many, possibly interacting …

We used quantitative genetics techniques to compare the entrepreneurial activity of 870
pairs of monozygotic (MZ) and 857 pairs of same-sex dizygotic (DZ) twins from the United …

This article examines how parental education level moderates the genetic and
environmental contributions to variation in verbal IQ. Data are from 1909 non‐Hispanic …

Background In order to develop informed approaches to prevention and treatment of illicit
psychoactive substance use, abuse, and dependence, we need to understand the sources …

Individuals differ in how they construct their investment portfolios, yet empirical models of
portfolio risk typically account only for a small portion of the cross‐sectional variance. This …