The public narrative surrounding efforts to improve low-performing K-12 schools in the United States has been notably gloomy. But what is known empirically about whether school improvement works, which policies are most effective, which contexts respond best to intervention, and how long it takes? We meta-analyze 141 estimates from 67 studies of…

The Every Student Succeeds Act builds on prior efforts to bridge the gap between research and practice through the imposition of evidence requirements. This article presents findings from a small-scale micro-process study of three districts in one state during their first year of implementing those requirements. Informed by past conceptualizations…