Mixed results from evaluations of school reform suggest a need for evidence to explain why some models succeed while others fail. Addressing that need, this study uses structural equation modeling to estimate difference-in-differences models that examine mediating mechanisms for positive effects produced by Innovation Zone (iZone) reforms in…

Teacher classroom instructional practice can be a powerful influence on student learning. The Classroom Promotion of Oral Language randomized controlled trial tested whether teacher professional learning focused on promoting oral language in classrooms could improve teacher knowledge and classroom instruction. This study focuses on evaluating the…