Provides an overview of recent behavior-genetic studies of personality that document (1) the demonstration of genetic bases for stability of certain personality dimensions, (2) evidence suggesting the most influential environmental sources of variation are those not jointly experienced by family members, and (3) continuing controversy regarding…

Recent data suggest that genes influence three domains of great importance to family researchers: (1) developmental outcomes; (2) family variables that are thought to influence those outcomes; and (3) covariance between measures of family process and developmental outcomes. Influence of genes on variances and covariances challenges current…

Examined evidence for reciprocal influence between adoptive parents' behavior and heritable characteristics of adopted children. Found that psychiatric disorders of biological parents were significantly related to children's antisocial/hostile behaviors and consequently with adoptive parents' behavior. Also, the adoptee's antisocial/hostile…