There is a need for robust evidence about which educational interventions work in preschool to foster children's cognitive and socio-emotional learning (SEL) outcomes. Lab-based individually randomized experiments can develop and refine such interventions, and field-based randomized experiments (e.g., cluster randomized trials) evaluate their…

This paper reviews research on the design and effectiveness of preschools in the United States. Three randomized controlled trials that enrolled roughly 350 total children in demonstration studies during the 1960s and 1970s shape much of the current discussion of preschool. We examine what these studies and more recent ones based on random…

Research Findings: Temperament, often defined in terms of reactive and regulatory tendencies, has been shown to predict child outcomes over and above other risk factors and represents a critical aspect of social-emotional development. The present article is a systematic review of temperament-based interventions targeting caregivers, wherein the…

As evidence becomes increasingly important in educational policy, it is essential to understand how research design might contribute to reported effect sizes in experiments evaluating educational programs. A total of 645 studies from 12 recent reviews of evaluations of preschool, reading, mathematics, and science programs were studied. Effect…

Pediatric health care represents an innovative platform for implementation of low-cost, population-wide, preventive interventions to improve school readiness. This article describes the Video Interaction Project, a targeted intervention in the pediatric primary care setting designed to enhance parenting skills and boost school readiness. The…