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Post by JIM CURRAN » Tue Feb 18, 2014 10:18 pm


Executive Summary

Public education has undergone major reforms in the last 30 years with the rise in high- stakes testing, accountability, and charter schools, as well as the current shift toward Common Core Standards. In the midst of these reforms, some policymakers have argued that class size does not matter. This opinion has a popular proponent in Malcolm Gladwell, who uses small class size as an example of a “thing we are convinced is such a big advantage [but] might not be such an advantage at all.”
These critics are mistaken. Class size matters. Research supports the common-sense notion that children learn more and teachers are more effective in smaller classes.
This policy brief summarizes the academic literature on the impact of class size and finds that class size is an important determinant of a variety of student outcomes, ranging from test scores to broader life outcomes. Smaller classes are particularly effective at raising achievement levels of low-income and minority children.
Considering the body of research as a whole, the following policy recommendations emerge:
 Class size is an important determinant of student outcomes, and one that can be directly determined by policy. All else being equal, increasing class sizes will harm student outcomes.
 The evidence suggests that increasing class size will harm not only children’s test scores in the short run, but also their long-run human capital formation. Money saved today by increasing class sizes will result in more substantial social and educational costs in the future.
 The payoff from class-size reduction is greater for low-income and minority children, while any increases in class size will likely be most harmful to these populations.
 Policymakers should carefully weigh the efficacy of class-size policy against other potential uses of funds. While lower class size has a demonstrable cost, it may prove the more cost-effective policy overall.

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