This report presents a comprehensive preliminary analysis of how California's Class Size Reduction (CSR) initiative has impacted student achievement during the first 2 years of implementation. The analysis is based on complete student, classroom, and teacher records from 26,126 students in 1,174 classrooms from 83 schools in 8 Southern California…

Develops a political economy framework for mapping and interpreting the competing purposes of schooling by examining five paradoxes in national policy debates addressing class size in public elementary schools. The framework highlights answers to the question: What kind of an economic good is education? (education as a service industry, producer…

Competing explanations of class size reduction effects on student academic achievement were tested using student, teacher, and school data collected from nearly 700 classrooms in over 70 schools during the first 3 years of implementation of California's (K-3) Class Size Reduction Program. Five major hypotheses were tested: (1) overall impact of…

This policy brief is based on prior class size research and address the following issues of concern to policy makers: (1) the extent and reliability of class size impact on student achievement; (2) the mechanisms by which class size changes turn into student learning effects; and (3) the economic consequences of the reduction of class size. This…

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)