Background: More than two million U.S. families receive home visiting services each year, yet little is known about the content and process of home visit interventions. Home visit observations are a recommended tool to address this gap in knowledge, but guidance regarding how much observation time is needed to provide a trustworthy picture of home…

Despite evidence that high-quality preschool programs have substantial, long-lasting impacts on young children's developmental outcomes, associations between preschool quality measures and children's cognitive outcomes within preschool programs are generally small or null. Using data from a large urban prekindergarten program, we examined…

The purpose of this study was to examine the average treatment effect of preschool special education services on children's kindergarten academic skills. Using data from a nationally representative sample of United States children who participated in the Early Childhood Longitudinal Study--Birth Cohort, we examined the effectiveness of preschool…

This study reports on the validation of the language domain subtest of a developmental assessment scale for Cantonese Chinese preschool children. Three hundred and seventy eight multi-stage randomly selected children between 3;4 and 6;3 years of age were tested on the 104-item subtest. Fifty-four of these children, spreading across three age…

Analysis of children's spoken narratives represents a potentially informative approach to language assessment within early childhood settings. Yet, narrative assessment is not readily amenable to at-scale use given the time needed to collect, transcribe, and analyze a child's narrative sample and the lack of consensus regarding what aspects of…

This book contains a compilation of papers presented at the International Psychological Applications Conference and Trends (InPACT) 2019, organized by the World Institute for Advanced Research and Science (W.I.A.R.S.). Modern psychology offers a large range of scientific fields where it can be applied. The goal of understanding individuals and…

This Technical Report is designed to provide technical detail to support the analysis and findings presented in the "Head Start Impact Study Final Report" (U.S. Department of Health and Human Services, January 2010). Chapter 1 provides an overview of the Head Start Impact Study and its findings. Chapter 2 provides technical information on the…

The purpose of this study was to examine the prevalence of behavioral risk and protective factors among at-risk preschoolers. Parent-reported data ( N = 2,550) from the Devereux Early Childhood Assessment (DECA) indicated that Head Start preschoolers had significantly more behavior concerns and fewer protective factors than would be expected based…