Adolescents with developmental language disorders (DLD) often no longer receive support services when they reach secondary school although many studies show persistent educational needs (Conti-Ramsden et al., 2018; Kolonko & Seglias, 2008; Romonath, 2003). To date, personal assessments of their support services by students themselves have…

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…

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 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…

A policy of reducing class size seems sensible, but might have costly, far-reaching implications for students, teachers, and public support for schools. The purpose of this research brief is to summarize 100 class size research studies from 1950 to 1985 and to regroup them into 18 areas of concern. The cluster analysis approach was designed to…

For years the issue of class size has been the subject of hundreds of educational research studies. The effects of class size on student achievement, student and teacher attitudes, instructional setting, and total classroom environment have been examined and re-examined. In general, the findings of these studies have been inconclusive, though for…

Confusion over the concepts of class size and pupil-teacher ratio (PTR) creates a conundrum for researchers, policy makers, and practitioners. An examination of how these two concepts are different is presented in this paper. A review of the literature suggests that class-size reduction makes a positive overall difference in student achievement,…

Discussion and research concerning class size can be traced back at least to the 12th century. An overview of recent research on the subject is provided in this report. The paper, which serves as an introduction to a symposium on class size, examines research that has appeared in the past 20 years, but it concentrates on the results of a…

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…

This article is condensed from the topical kit, "NEA Focus: Class Size--A Critical Factor in Quality Education." It cites research on the effects of class size on classroom environment, pupil attitudes, and teacher morale. It also discusses the politics of class size and the advantages of small classes. (SJL)

Research indicates that the relationship between class size and instructional effectiveness depends on a multitude of related variables, such as age level of students, subject matter taught, and instructional methods used. Recent statistical syntheses of this research reveal that the instructional benefits of smaller classes are most significant…

Literature on the relation between class size and student achievement is reviewed, and policy alternatives are suggested. Class size reduction strategies, focusing on individual or small group tutoring, are proposed for primary and secondary instruction. Implementing these strategies requires ambitious staff development programs. (SLD)

This paper seeks to answer the question, "What is the relationship between student achievement and four variables often cited as solutions?" The selected variables are: (1) per-pupil expenditure; (2) class size; (3) teacher advanced training; and (4) teacher experience. Because supporters promote initiatives focusing on these variables,…

After a brief introduction identifying current issues and trends in research on class size, this brochure reviews five recent studies bearing on the relationship of class size to educational effectiveness. Part 1 is a review of two interrelated and highly controversial "meta-analyses" or statistical integrations of research findings on…

This research brief reviews selected 1986 publications concerning the effects of class size on student achievement, attitudes, and behavior. The following points are made: (1) smaller classes in the lower grades have a positive effect on student learning attitudes and behavior; (2) minority, disadvantaged, and low-achieving students perform better…