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The What Works Clearinghouse (WWC) was established in 2002 by the U.S. Department of Education's Institute of Education Sciences to provide educators, policymakers, researchers, and the public with a central and trusted source of scientific evidence of what works in education. It is administered by the Department through a contract to a joint venture of the American Institutes for Research and the Campbell Collaboration. The WWC provides education consumers with high-quality reviews of the effectiveness of educational interventions (programs, products, practices, and policies) that intend to improve student outcomes.