Evidence from Project STAR has suggested a considerable advantage of being in small classes in early grades. However, the extra benefits of additional years in small classes have not been discussed in detail. The present study examined the additional effects of being in small classes for more than 1 year. We find that once previous grade…

This paper introduces an empirical strategy to estimate dynamic treatment effects in randomized trials that provide treatment in multiple stages and in which various noncompliance problems arise such as attrition and selective transitions between treatment and control groups. Our approach is applied to the highly influential four year randomized…

The purpose of this paper is to report on the methodology, findings, and implications of two meta-analyses of class size. It begins with an explanation of a graph that indicates smaller classes result in increased pupil achievement. Next, summaries are provided of meta-analyses 1 and 2, followed by an extensive critique. The paper concludes that…

This critique of two recent meta-analyses of class size research is unique among all previous studies and reports published by Educational Research Service. It was made necessary by two extraordinary reviews of class size research prepared by Gene V Glass and Mary Lee Smith and published by the Far West Laboratory for Educational Research and…

Examines whether class size in the introductory-level economics course affects subsequent performance in intermediate-level economics courses. Studies University of Massachusetts (Boston) students who are allowed to choose large or small lecture classes. Finds that students enrolled in large sections received lower grades in subsequent…

The paper discusses an experiment in which regression analysis was used to examine predictors of information retention following a college economics course. It was hypothesized that students taught in small classes with self-instructional materials would place a higher value on basic economic concepts and retain these concepts longer than students…