In this report, we describe the results of a rigorous two-year study of the impacts of a mathematics initiative called Ongoing Assessment Project (OGAP) on teacher and student learning in grades 3-5 in two Philadelphia area school districts. OGAP is a mathematics program which combines teacher formative assessment practices with knowledge of…

This article illustrates the value of large-scale impact evaluations with counterfactual components. It begins by exploring the limitations of small-scale impact studies, which do not allow reliable inference to a wider population or which do not use valid comparison groups. The paper then describes the design features of a recent large-scale…

Theory and empirical work suggest that teachers' social capital influences school improvement efforts. Social ties are prerequisite for social capital, yet little causal evidence exists on how malleable factors, such as instructional management approaches, affect teachers' ties. In this cluster-randomized trial, we apply a decision-making…

School-based improvement programs represent a core strategy in improving education because they can leverage pre-existing social and organizational structures to promote coordinated and comprehensive change across multiple facets of schooling. School-based programs are generally designed to be implemented by intact schools/districts, frequently…

The "Vocabulary Improvement Program for English Language Learners and Their Classmates" ("VIP") is a vocabulary development curriculum for English language learners and native English speakers (grades 4-6). The 15-week program includes 30-45 minute whole class and small group activities, which aim to increase students'…

The purpose of this paper is to present findings from a program evaluation conducted to examine the effectiveness of the Schools Attuned program in a north Texas school district. Schools Attuned was developed by a professor of pediatrics, Dr. Mel Levine (2002), as a professional development model to train teachers to identify cognitive and…