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…

This report demonstrates the effects of the Arkansas Better Chance program (ABC) on late elementary and middle school outcomes. End of year assessments, which varied over the course of the study years, were examined for students of three preschool cohorts. Students included in the statewide study received free lunch all years and were enrolled in…

This report demonstrates the effects of the Arkansas Better Chance program (ABC) on late elementary and middle school outcomes. End of year assessments, which varied over the course of the study years, were examined for students of three preschool cohorts. Students included in the statewide study received free lunch all years and were enrolled in…

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.…

"Looking Closer" is the eighth biennial report to SREB states on their progress in meeting SREB's Challenge to Lead goals for education. Each customized state report documents progress on both measurable outcomes and state policies. Through effective policy implementation, the goals can help states drive improvements in student…