A meta-analysis of class sizes and ratios in early childhood education programs: Are thresholds of quality associated with greater impacts on cognitive, achievement, and socioemotional outcomes?

Resource Type: Reports & Papers
Author(s): Bowne, Jocelyn; Magnuson, Katherine A.; Schindler, Holly S.; Duncan, Greg J.; Yoshikawa, Hirokazu;
Date Issued: September, 2017
Description: This study uses data from a comprehensive database of U.S. early childhood education program evaluations published between 1960 and 2007 to evaluate the relationship between class size, child-teacher ratio, and program effect sizes for cognitive, achievement, and socioemotional outcomes. Both class size and child-teacher ratio showed nonlinear relationships with cognitive and achievement effect sizes. For child-teacher ratios 7.5:1 and lower, the reduction of this ratio by one child per teacher predicted an effect size of 0.22 standard deviations greater. For class sizes 15 and smaller, one child fewer predicted an effect size of 0.10 standard deviations larger. No discernible relationship was found for larger class sizes and child-teacher ratios. Results were less clear for socioemotional outcomes due to a small sample. (author abstract)
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Funder(s): Birth to Five Policy Alliance ; Buffett Early Childhood Fund ; Casey Family Programs ; Robert R. McCormick Tribune Foundation ; The Norlien Foundation ; Harvard University ; Institute of Education Sciences (U.S.) ; New York University Abu Dhabi Institute
Journal Title: Educational Evaluation & Policy Analysis
Volume Number: 39
Issue Number: 3
Page Range: 407-428
Topics: Children & Child Development > Child Development & School Readiness

Child Care & Early Education Quality > Structural Quality
Country: United States
ISSN: 1935-1062 Online
0162-3737 Paper
Peer Reviewed: yes
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