Designing and Conducting Impact Studies in Education: Lessons Learned From the What Works Clearinghouse

The U.S. Department of Education established the What Works Clearinghouse in 2002 to serve as a “central and trusted source of scientific evidence for what works in education.” Of the 1,500 studies submitted to the clearinghouse in its first five years, only five percent met evidence standards with reservations and 89 percent did not meet evidence screens.

This report, by Mengli Song and Rebecca Herman of the American Institutes for Research, offers suggestions on what researchers might do to improve the quality of material submitted to the clearinghouse.

Click here to read the report, and here for computation tools to assist researchers.



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