Many national and international educational data collection programs offer researchers opportunities to investigate contextual effects related to student performance. In those programs, schools are often used in the first-stage sampling process and students are randomly drawn from selected schools. However, the "incidental" dependence of…

The transition into kindergarten often serves as the basis for long-term disparities in educational attainment because initially small differences in early learning widen throughout the K-12 educational system. Given the long-standing disparities in their academic achievement related to being of low socioeconomic status and a racial/ethnic…

Understanding disparities in school readiness among America's children when they begin kindergarten is critically important, now more than ever. In today's 21st century global economy, it is expected that the great majority of children will complete high school ready to enter college or begin a career, and assume their civic responsibilities. This…

The first 5 years of life are a critical foundation for children's early learning and lifelong development. This eBulletin highlights school readiness, how early experiences matter, the role of preschool in supporting readiness, and state and local efforts to implement recommendations from the National Governors Association (NGA). The following…

The growth in public preschool education is based on research that shows high-quality prekindergarten has a positive effect on children's chances of succeeding in school and life. Beneath the surface of this growth, however, lies a troubling lag in preschool education participation by the nation's largest, fastest growing and yet most…