This Policy Guide draws on work with five states to provide context and guidance for policymakers looking to strengthen the pre-K to K-3 continuum and create opportunities to close the achievement gap. It includes a tear-out page of guiding questions at the end.

The purpose of this paper is to showcase new research that seeks to provide guidance on the heterogeneity of treatment effects by utilizing the variance of demographic differences in state assessments. This study is focused on a simple randomized block design where students are nested within schools, and within each school students are randomized…

Randomized experiments are often considered the strongest designs to study the impact of educational interventions. Perhaps the most prevalent class of designs used in large scale education experiments is the cluster randomized design in which entire schools are assigned to treatments. In cluster randomized trials (CRTs) that assign schools to…

Background: Cluster-randomized experiments that assign intact groups such as schools or school districts to treatment conditions are increasingly common in educational research. Such experiments are inherently multilevel designs whose sensitivity (statistical power and precision of estimates) depends on the variance decomposition across levels.…

Based on the findings of a recent three-year study by Dominican University's Graduate School of Library and Information Studies, the authors can confirm what many librarians have long suspected: students who take part in their local library's summer reading program significantly improve their reading skills. This article describes the results of…

Since the 2003-04 school year, Save the Children, U.S. Programs, has supported programming designed to improve reading skills among struggling students in rural areas. The literacy program includes both afterschool and in-school interventions with small groups of children. These are implemented by well-trained paraprofessionals and are designed to…