Do interventions work and for whom? For this article, we examined the influence of population heterogeneity on power in designing and evaluating interventions. On the basis of Monte Carlo simulations in Study 1, we demonstrated that the power to detect the overall intervention effect is lower for a mixture of two subpopulations than for a…

To answer the question of whether teaching social and emotional skills to foster social-emotional development can help schools extend their role beyond the transfer of knowledge, the authors conducted a meta-analytical review of 75 recently published studies that reported the effects of universal, school-based social, emotional, and/or behavioral…

This paper on the problem of sex offending among individuals with intellectual disabilities examines the incidence of this problem, characteristics of intellectually disabled sex offenders, determination of whether the behavior is a paraphilia or functional age-related behavior, and treatment options, with emphasis on the situation in New South…

It is assumed here that the most effective way of reducing the rate of deviant child behavior is to alter the reinforcing contingencies supplied by the social agents who live with the child. The immediate focus for the intervention program is upon the social environment in which the child lives, because it is the parents, siblings, peers, and…

The present study used general growth mixture modeling to identify pathways of antisocial behavior development within an epidemiological sample of urban, primarily African American boys. Teacher-rated aggression, measured longitudinally from 1st to 7th grade, was used to define growth trajectories. Three high-risk trajectories (chronic high,…

Asking how we can best support the health and well-being of infants and children in an era of rapid economic and technological change, this book presents findings on human development as both an individual and a population phenomenon. Topics discussed include links between socioeconomic status, achievement, and health; the impact of early…