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…

Intermediary organizations increasingly provide support for schools serving marginalized students. Some attribute this trend to growing ideological support for market-based strategies to further the public good. This article investigates one intermediary that marketed equity-oriented instructional goals for schools serving high numbers of students…

Coherence is the core principle underlying standards-based educational reforms. Assessments aligned with content standards are designed to guide instruction and raise achievement. The authors investigate the coherence of standards-based reform's key instruments using the Surveys of Enacted Curriculum. Analyzing 138 standards-assessment pairs…