Pre-kindergarten (Pre-K) improves the school readiness of all children, but less is known about whether associations between enrollment in Pre-K and different indicators of social-emotional and executive functioning (EF) skills are sustained as children move into and across elementary school. The current study examines associations between…

The Boston Public Schools (BPS) district is the first large school system in the United States to design and implement a curriculum and professional model--called "Focus on Early Learning"--to align instruction across its well-known, high-quality public school pre-K program and early elementary school grades. Schools opt in and can…

We have many reasons to invest in preschool programs, including persistent gaps in school readiness between children from poorer and wealthier families, large increases in maternal employment over the past several decades, and the rapid brain development that preschool-age children experience. But what do we know about preschool education's…

In recent years, policymakers' and practitioners' interest in school climate as a contributor to K-12 student learning and classroom processes has increased, both in the US and internationally. However, researchers have not yet examined the influence of school climate on the youngest learners in these contexts -- prekindergartners. Using data from…

Early childhood interventions can be highly cost effective when positive impacts are sustained into adulthood. Yet while many recent preschool interventions have been found to have short-term effects on young children's language, literacy, mathematics, executive function, and social-emotional development, studies show that impacts on cognitive and…

Despite consensus in the developmental literature regarding the role of executive function (EF) skills in supporting the development of language skills during the preschool years, we know relatively little about the associations between EF skills, including all EF components, and vocabulary skills among preschool-aged children. In this paper, we…

Experts have heralded domain-specific play-based curricula coupled with regular coaching and training as our "strongest hope" for improving instructional quality in large-scale public preschool programs. Yet, details from different evaluations of the strongest hope model are not systematically compiled, making it difficult to identify…

Publicly funded prekindergarten programs have achieved small-to-large impacts on children's cognitive outcomes. The current study examined the impact of a prekindergarten program that implemented a coaching system and consistent literacy, language, and mathematics curricula on these and other nontargeted, essential components of school readiness,…

Head Start is the largest publicly funded preschool program in the U.S., and one of its primary goals is to improve the school readiness of low-income children. As has been widely reported, the first randomized trial of Head Start in the program's history found some evidence that it is achieving this goal. Receiving one year of Head Start had…

Parental engagement in home-based learning activities is linked to children's academic skills. Yet, interventions that try to enhance parental engagement--sometimes targeted to families with low levels of education--have small effects. This study aimed to inform supports for families by examining how different types of home-based learning…

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 expansion of publicly-funded preschool education is currently the focus of a prominent debate. At present, 42% of 4-year-olds attend publicly funded preschool (28% attend public prekindergarten programs, 11% Head Start, and 3% special education preschool programs). A vigorous debate about the merits of preschool education is underway, although…

We assessed impacts on classroom quality and on 5 child language and behavioral outcomes of a 2-year teacher professional-development program for publicly funded prekindergarten and kindergarten in Chile. This cluster-randomized trial included 64 schools (child N = 1,876). The program incorporated workshops and in-classroom coaching. We found…

As states and districts expand access to publicly funded PreK programs, researchers and policymakers have been grappling with experimental evidence demonstrating that the benefits of PreK on academic skills are not likely to last into early elementary school. A leading hypothesis to explain this phenomenon is that PreK and the elementary grades…

In recent years, there has been increased interest in improving early mathematics curricula and instruction. Subsequently, there has also been a rise in demand for better early mathematics assessments, as most current measures are limited in their content and/or their sensitivity to detect differences in early mathematics development among young…