It is well-established that vocabulary is the strongest predictor of reading comprehension from grades 2 or 3 on. In this article, I argue (a) that English vocabulary is acquired in a similar sequence by native-English speakers and English-language learners; and (b) that it is possible to identify words that both lower-vocabulary English-speakers…

Research on intensity of therapy services is limited and perspectives often vary considerably among families, therapists, administrators, policy makers, and health insurers. In this commentary, the authors share their perspectives on intensity of physical therapy and/or occupational therapy services for children with developmental conditions. Five…

Equity is a major concern for all development actors. Although Sri Lanka has successfully addressed equity issues in education sector there are unresolved factors and variables those perpetuate inequity. There are emerging new equity issues those that Sri Lanka needs to address. The changing population dynamics and the huge middle class population…

Over the second half of the twentieth century, changes occurred in parent reports of their engagement in cognitive activities with their young children in the United States. This article argues that the growing trend of "parenting for cognitive development" in young children in the latter half of the twentieth century is associated with the…

In this article, the author talks about "Developing Early Literacy," the report of the National Early Literacy Panel. The panel, which consisted of nine experts, was convened by the National Institute for Literacy to synthesize the research on the development of literacy from birth through age 5. Over the eight years of their work, only 190…

Considers the increase in research on adolescence, with attention to its transitional aspects during the adolescent period and as a bridge between childhood and adulthood. In addition, discusses the effort to examine interactional processes between parent and child and between environment and genes, with respect to the articles of this special…

Comments on problems raised in this special issue, focusing on the distinctive aspects of the risk research reported. Highlights issues like sample characteristics, measurement strategies, specificity of risk factors, and risk mechanisms. Discusses the challenges of integrating alternative models of risk, with special references to research into…

Comments on research problems raised in this special issue. Suggests that recent research highlights the nature of the multiple processes underlying variability in child and adolescent adjustment. Views variability as a function of covarying influences from multiple domains, operating on specific developmental outcomes across a background of time…

Comments on the special theme issue examining the roles of socialization, biology, and culture as they affect adaptive and maladaptive developmental outcomes. Proposes a theory-guided research approach, based on four assumptive components of contemporary developmental theories: systematic change and relative plasticity; relationism and…

Introduces this special theme issue examining the roles of socialization, biology, and culture as they affect adaptive and maladaptive developmental outcomes. Problems of adolescence addressed include antisocial behavior, depressive symptoms, substance abuse, low achievement, and eating problems. Considers factors implicated in successful…

Comments on this special theme issue examining the roles of socialization, biology, and culture as they affect adaptive and maladaptive developmental outcomes. Presents models for predicting and understanding behavioral and affective change at transitions occurring especially from middle childhood through adolescence. Provides examples…

Comments on van Geert's mathematical model of Vygotsky's zone of proximal development, in this issue. Supports van Geert's use of a nonlinear model, noting that linear statistical models overlook variability in psychological phenomena. Discusses the time asymmetry in van Geert's model, which does not account for a subject's "developmental…

Argues that Vygotsky's "zone of proximal development" (ZPD) can be redefined as a nonlinear dynamic model. Presents a mathematical reformulation that generates a variety of developmental patterns and has the capacity to show under which conditions unwanted or unsuccessful developmental paths may occur. Illustrates how this reformulation…

Across the country, youth advocates, civic activists, community builders, and young people themselves have been calling for more meaningful roles for young people in society. This special issue brings the voices of researchers into that conversation. In doing so, it builds in important ways on a small but growing evidence base that underscores the…

Delineates the current consensus regarding the nature and the development of intellectual ability. Examines when one would expect general abilities to moderate the relationship among domain-specific and other processes. Reviews recent studies in which general abilities were used as independent variables or covariates. Suggests that generally,…