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Washington State Institute for Public Policy

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Publications

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K-12 Class Size Reductions and Student Outcomes: A Review of the Evidence and Benefit-Cost Analysis
Open Publication PDF

Steve Aos, Annie Pennucci - January 2013

The Washington State Legislature directed the Washington State Institute for Public Policy (Institute) to develop “a repository of research and evaluations of the cost-benefits of various K–12 educational programs and services.”

In this report, we analyze a significant policy question for the legislature: do the benefits of reducing the number of students in K-12 classrooms outweigh the costs?

Download:   Full Report  
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Legislation