Improving educational outcomes involves many variables, including identifying effective interventions and ensuring that they are effectively implemented in schools. Within a "response to intervention" model, treatment integrity of academic interventions has become increasingly important. However, recent research has suggested that…

Water-resource scientists have become increasingly concerned about global water quality and quantity issues. Water and watershed education are now mandated topics for school-aged youth. Pennsylvania teachers lack consistent and accessible curricula to teach students about water quality and quantity. A mail survey administered in 2004 determined…

This study focuses on how the treatment effects of a teacher professional development initiative in science differed by school capacity. In other words, the authors are primarily concerned with treatment effect heterogeneity. As such, this paper complements ongoing evaluation of the average treatment effects of the initiative over time. The…