The purpose of this study was to examine the participation of students in extended day programming at Donoghue Elementary School, a University of Chicago Charter School, during the 2009-2010 school year and explore whether participation was related to academic performance and improvement. Using the available written records, the authors found that…

This "Practitioner's Guide to Growth Models," commissioned by the Technical Issues in Large-Scale Assessment (TILSA) and Accountability Systems & Reporting (ASR), collaboratives of the "Council of Chief State School Officers," describes different ways to calculate student academic growth and to make judgments about the…

Article reanalyzes and expands upon data from Tennessee's Project STAR which examined the effects of class size reduction on student achievement in the primary grades. It describes six competing theories of class size impact on achievement and test performance, settling on the student group/modeling interpretation of study data. (SM)