Decreasing class sizes, even by as little as one student, comes with a price tag. It is possible to "pay" for this increase by compensating with one of the other factors influencing the salary cost of teachers: lower teachers' salaries, less required instruction time for students or more teaching time for teachers. Across OECD countries…

This Information Capsule examines the background and history in addition to research findings pertaining to class size reduction (CSR). This Capsule concludes that although educational researchers have not definitively agreed upon the effectiveness of CSR, given its almost universal public appeal, there is little doubt it is here to stay in some…

During summer vacation, many students lose knowledge and skills. By the end of summer, students perform, on average, one month behind where they left off in the spring. Participation in summer learning programs should mitigate learning loss and could even produce achievement gains. Indeed, educators and policymakers increasingly promote summer…

A substantial amount of controversy surrounds the issue of class size in public schools. Parents and teachers are on one side, touting the benefits of smaller class sizes (e.g., increased academic achievement, greater student-teacher interaction, utilization of more innovative teaching strategies, and a decrease in discipline problems). On the…

Each year, Austin Independent School District Department of Research and Evaluation (DRE) staff develop a plan of work to describe the scope of work for the coming year. The plans that make up this document identify programs to be evaluated and services to be provided by DRE staff and provide the blueprints for evaluation that staff will follow…

We discuss the evidence on the effectiveness of preschool programs using results from three well-known intervention studies: the Chicago Child-Parent Centers, High/Scope Perry Preschool Program, and the Carolina Abecedarian Project. Results from cost-benefit analyses of other programs for younger and older children also are reported. Given that…

Although class size reductions are often proposed as a way to improve student learning, research does not indicate that smaller classes will necessarily produce improved student achievement. Class size effects on student learning vary by grade, pupil characteristics, subject area, teaching method, and other learning interventions. References…

Alan Krueger's reanalyses of Eric Hanushek's school-productivity data show that Hanushek's "money doesn't matter" conclusions (influential in several states' education-finance hearings) have no factual basis. Hanushek excluded Tennessee's student/teacher ratio study (Project STAR). Also, class size is influencing students' success in…

Using university cost data and student data from 176 members of university economics classes, this study finds that substantial monetary savings are realized by offering large classes, although their students have a 38% decreased probability of enrolling in future economics classes. Money savings may translate into enrollment losses. (SLD)

Serious interest in reducing class size often begins with a key question: What available evidence would support the higher implementation costs? This article discusses positive results of a longitudinal statewide study in Tennessee (Project STAR) and uses findings to specify four guidelines for practitioners and policy makers. Evaluation plans…

Argues that study findings indicate that lowered class size increases student achievement and improves school attitudes. Counter argument indicates there is little educational payoff and great monetary expense in small reductions in class size. (RH)

This paper discusses research studies concerning class size and its relation to academic achievement. It also explores whether educational benefits of smaller classes justify the additional cost and whether an optimum class size exists that maximizes educational benefits and cost effectiveness. Following a review of the literature, the paper…

This paper addresses three questions policymakers may have concerning the results of the Project STAR data. First, when reducing class size, is there a "turning point" at which class size reductions lead to increased gains in student achievement? Second, do small classes help low socioeconomic status "at risk" students more…

Questions positive effects of small classes on student achievement. Describes study using 1998 NAEP reading data to determine whether students in small classes do better than students in large classes. Finds that after controlling for several factors such as gender, students in small classes did no better in reading than students in large classes.…

From a cost-benefit viewpoint, investing school revenues in small K-3 classes has great potential for improving productivity. Statewide class reduction initiatives in Indiana, Tennessee, Texas, and Wisconsin have positively influenced student achievement, behavior, citizenship, and development. Districts cannot afford to ignore this mounting…