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Direct linkJeffrey C. Valentine – Journal of Research on Educational Effectiveness, 2024
Published studies of intervention effects probably report effect sizes that are larger than the true effect size. There are probably many reasons for this, but one can be thought of as a "winner's curse." In this essay, I discuss evidence from two recent studies that highlight how evidence clearinghouses might inadvertently expose…
Descriptors: Clearinghouses, Evidence, Evaluation Criteria, Replication (Evaluation)
Download full textMonahan, Shannon; Kratochwill, Thomas; Lipscomb, Stephen – Society for Research on Educational Effectiveness, 2011
The What Works Clearinghouse (WWC) seeks to provide educators, policymakers, researchers, and the public with a central and trusted source of scientific evidence for what works in education. The WWC was established in 2002 by the U.S. Department of Education's Institute of Education Sciences (IES). It serves as a decision-making resource by…
Descriptors: Expertise, Evidence, Educational Research, Clearinghouses
Ashby, Cornelia M. – US Government Accountability Office, 2010
In connection with the Omnibus Appropriations Act, 2009, GAO (Government Accountability Office) was required to study the What Works Clearinghouse (WWC), a federal source of evidence about effective education practices. Operating through a 5-year contract awarded by the U.S. Department of Education's Institute of Education Sciences (IES), the WWC…
Descriptors: Clearinghouses, Instructional Effectiveness, Federal Legislation, Evaluation Methods
Al-Yaman, Fadwa; Higgins, Daryl – Australian Institute of Health and Welfare, 2011
The Closing the Gap Clearinghouse was established by the Council of Australian Governments (COAG) to bring together evidence-based research on overcoming disadvantage for Indigenous Australians. The Clearinghouse provides access to a collection of information on what works to improve Indigenous people's lives across the building blocks identified…
Descriptors: Foreign Countries, Indigenous Populations, Clearinghouses, Educational Policy
