Between 1985 and 1989, the Student Teacher Achievement Ratio (STAR) Project studied the effect of class size on student achievement in Tennessee schools. The study examined: (1) small classes of 13 to 17 students per teacher; (2) regular classes of 22 to 25 students per teacher; and (3) regular classes with a teacher's aide. The sample included…

Researchers on the Lasting Benefits Study (LBS) are tracking students who participated in Tennessee's K-3 Student/Teacher Achievement Ratio (STAR) Project (1985-89) as they continue into later grades. Project STAR was a statewide experiment conducted to demonstrate the effects of reduced student/teacher ratios (15:1) on student achievement…

Between 1985 and 1989, the Student Teacher Achievement Ratio (STAR) Project studied the effect of class size on student achievement in Tennessee schools. The study examined: (1) small classes of 15 students per teacher; (2) regular classes of 24 students per teacher; and (3) regular classes with a teacher's aide. The sample included students from…

Four years of research in Tennessee involving more than 6,000 students each year demonstrate that smaller classes can provide substantial gains in student achievement, especially in the early grades. Lists 10 information sources about the effects of class size on student learning. (MLF)

The effects of class size on academic achievement have been studied for decades. Although the results of small-scale, randomized experiments and large-scale, econometric studies point to positive effects of small classes, some scholars see the evidence as ambiguous. Recent analyses from a 4-year, large-scale, randomized experiment on the effects…

Analyzed data from a five-year followup of students in Tennessee's Student/Teacher Achievement Ratio (STAR) project, a four-year large-scale randomized examination of the effects of class size on academic achievement. Results suggest that class-size benefits persist for at least five years and remain large enough to be important to educational…

Used data from Tennessee's Project STAR, a longitudinal class size experiment, to study the cumulative effects of reduced class size in the early grades on academic achievement. Results indicated that controlling for achievement in the previous year, small classes in grades 1-3 yielded statistically significant additional positive effects on…

Conducted a 6-year followup of almost 4,000 students in Project STAR in Tennessee, a 4-year, large-scale randomized experiment on the effects of class size. Though follow-up data could not be obtained on more than one-half of the students, class size effects persisted for at least 6 years and remained large enough to be of importance for…

Recent research from randomized experiments on class size points to positive effects of small classes that persist for several years, but the evidence about the social distribution of effects is less clear. Some scholars have contended that the immediate effects of small classes are larger for minorities and for disadvantaged persons (e.g., J. D.…