Prior research has established the potential for achievement gains from attending smaller classes. However, large statewide class-size reduction (CSR) policies have not been found to consistently realize such gains. A leading explanation for the disappointing performance of CSR policies is that schools are forced to hire additional teachers of…

The current study will examine possible contextual effects relative to differences in reading comprehension performance in the state of Florida. While the Reading First (RF) Impact study examined such difference using a regression discontinuity design, the authors are primarily interested in other analytic methods that might answer different…