The Non-Cognitive Returns to Class Size

63 Pages Posted: 16 May 2008 Last revised: 28 Sep 2010

See all articles by Thomas S. Dee

Thomas S. Dee

Stanford University - School of Education; National Bureau of Economic Research (NBER)

Martin R. West

Harvard Graduate School of Education

Date Written: May 2008

Abstract

Although recent evidence suggests that non-cognitive skills such as engagement matter for academic and economic success, there is little evidence on how key educational inputs affect the development of these skills. We present a re-analysis of follow-up data from the Project STAR class-size experiment and find evidence that early-grade class-size reductions did improve subsequent student initiative. However, these effects did not persist into the 8th grade. Furthermore, the external and, possibly, the internal validity of these inferences is compromised by non-random attrition. We also present a complementary analysis based on nationally representative survey data and a research design that relies on contemporaneous within-student and within-teacher comparisons across two academic subjects. Our results indicate that smaller classes in 8th grade lead to improvements in measures of student engagement with effect sizes ranging from 0.05 to 0.09 and smaller effects persisting two years later. Using the estimated earnings impact of these non-cognitive skills and the direct cost of a class-size reduction, the implied internal rate of return from an 8th-grade class-size reduction is 4.6 percent overall, but 7.9 percent in urban schools.

Suggested Citation

Dee, Thomas S. and West, Martin R., The Non-Cognitive Returns to Class Size (May 2008). NBER Working Paper No. w13994, Available at SSRN: https://ssrn.com/abstract=1133909

Thomas S. Dee (Contact Author)

Stanford University - School of Education ( email )

Stanford, CA 94305-3096
United States

National Bureau of Economic Research (NBER)

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

Martin R. West

Harvard Graduate School of Education ( email )

6 Appian Way
Cambridge, MA 02138
United States

Here is the Coronavirus
related research on SSRN

Paper statistics

Downloads
26
Abstract Views
541
PlumX Metrics