Using a longitudinal, prospective adoption design, the authors of this study examined the effects of the environment (adoptive parents' depressive symptoms and responsiveness) and genetic liability of maternal depression (inferred by birth mothers' major depressive disorder [MDD]) on the development of fussiness in adopted children between 9 and…

Research findings on the early precursors of substance use and related adjustment difficulties have led to interest in developmental models to explain problem behavior. This paper examines five major themes that characterize the relationship among social context, individual disposition, and syndromes of problem behaviors that include substance use…