This brief summarizes findings on class size from over 25 years of work on the Tennessee Student Teacher Achievement Ratio (STAR) randomized, longitudinal experiment, and other Class-Size Reduction (CSR) studies throughout the United States, Australia, Hong Kong, Sweden, Great Britain, and elsewhere. The brief concludes with recommendations. The…

Used Tennessee Project STAR data to examine the impact of the duration of participation in small classes on K-3 students' later school performance. Year in which students started and number of years they participated in small classes were important mediators of benefits gained. Starting early and continuing for at least 3 years were necessary to…

Conclusive research has shown the benefits of small class size (1:15), especially for primary grades. Large-scale projects in Indiana and Tennessee and numerous smaller studies found that youngsters in small classes obtain higher test scores, participate more eagerly, demonstrate improved behavior, and retain these benefits in later schooling…

Describes Tennessee's Student/Teacher Achievement Ratio (STAR) Project, a study of class size, and summarizes its findings with regard to academic achievement and behavior. Positive findings from STAR are providing impetus for class-size-reduction policies. Discusses some criticisms of STAR research and findings. (SLD)

Tennessee's Project STAR (Student Teacher Achievement Ratio) randomly assigned 7,000 K-3 students to small classes (13-17 pupils), regular classes (22-26 pupils), and regular-with-aide classes. Small classes ameliorate large schools' effects, reduce grade retention and discipline problems, benefit minority students substantially, allow students…

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…

This book contains vignettes and observations provided by teachers who conduct small classes in primary grades. Designed for school leaders, teachers, administrators, students, and others who care about the future of education, the text presents findings from the Student Teacher Achievement Ratio (STAR), the DuPont Study, and the Lasting Benefits…

Small classes in the elementary grades have been shown to boost students' academic performance. However, researchers continue to seek a consistent, integrated explanation of "why" small classes have positive effects. This article forwards the hypothesis that when class sizes are reduced, major changes occur in students' engagement in the…

Tennessee's Project STAR (Student Teacher Achievement Ratio), a large longitudinal project involving students in kindergarten through third grade, has provided important information about class-size effects on pupil achievement and development. The project showed that small classes provided higher student outcomes and better student behaviors than…