Online interventions promoted to enhance cognitive ability hold great appeal for their potential positive impact in social, employment, and educational domains. Cognitive training programs have, thus far, not been shown to influence performance on tests of general cognitive aptitude. Strengthening Mental Abilities with Relational Training (SMART)…

This study explores the extent to which differences in research design explain variation in Head Start program impacts. We employ meta-analytic techniques to predict effect sizes for cognitive and achievement outcomes as a function of the type and rigor of research design, quality and type of outcome measure, activity level of control group, and…

Clear associations of sleep, cognitive performance, and behavioral problems have been demonstrated in meta-analyses of studies in adults. This meta-analysis is the first to systematically summarize all relevant studies reporting on sleep, cognition, and behavioral problems in healthy school-age children (5-12 years old) and incorporates 86 studies…

"Sesame Street" is broadcast to millions of children globally, including in some of the world's poorest regions. This meta-analysis examines the effects of children's exposure to international co-productions of "Sesame Street", synthesizing the results of 24 studies, conducted with over 10,000 children in 15 countries. The results indicated…

It is common knowledge that physical activity leads to numerous health and psychological benefits. However, the relationship between children's physical activity and academic achievement has been debated in the literature. Some studies have found strong, positive relationships between physical activity and cognitive outcomes, while other studies…

The purpose of this research is to determine the effects of home-based programmes aimed specifically at improving developmental outcomes for preschool children from socially disadvantaged families. The authors searched the following databases between 7 October and 12 October 2010: Cochrane Central Register of Controlled Trials (CENTRAL) (2010,…

Head Start was designed as a holistic intervention to improve economically disadvantaged, preschool-aged children's cognitive and social development by providing a comprehensive set of educational, health, nutritional, and social services, as well as opportunities for parent involvement (Zigler & Valentine, 1979). Given the current interest in ECE…

Background/Context: There is much current interest in the impact of early childhood education programs on preschoolers and, in particular, on the magnitude of cognitive and affective gains. Purpose/Objective/Research Question/Focus of Study: Because this new segment of public education requires significant funding, accurate descriptions are…

Aim: The aim of this study was to review the effects of early developmental intervention after discharge from hospital on motor and cognitive development in preterm infants. Method: Randomized controlled trials (RCTs) or quasi-RCTs of early developmental intervention programmes for preterm infants in which motor or cognitive outcomes were reported…

The focus of this paper centers around timing associated with early childhood education programs and interventions using meta-analytic methods. At any given assessment age, a child's current age equals starting age, plus duration of program, plus years since program ended. Variability in assessment ages across the studies should enable everyone to…

A primary purpose of early childhood education and interventions is to promote children's acquisition of knowledge and skills linked to later social competence and academic success. In this report, special attention is given to summarizing what has been learned about early childhood classrooms as contexts for development and learning, the kinds of…

This report systematically reviews research on the outcomes of programs that teach young children in a group setting before they begin kindergarten. Study inclusion criteria included the use of randomized or matched control groups, evidence of initial equality, and study duration of at least 12 weeks. Studies included valid measures of language,…

The purpose of this review of selected literature is to further extend knowledge about the effects of Head Start on cognitive development. From a comprehensive collection of over 1,400 documents concerning Head Start, 71 studies were selected for review and coded to permit a meta-analytic, quantitative analysis of findings. The coding system…

Including all Head Start research (both published and unpublished) and using, when possible, the statistical technique of meta-analysis, this final report of the Head Start Evaluation, Synthesis, and Utilization Project presents findings on the impact of Head Start on children's cognitive and socioemotional development, on child health and health…

Preliminary findings of an analysis of Head Start research evidence amassed from 1965 to the present are reported in this document, along with a summary of conclusions from related studies of preschool programs. Specifically presented are long-term findings of the Consortium for Longitudinal Studies concerning the lasting benefits of preschool…