Overview of the What Works Clearinghouse Handbook Standards for Evidence

This brief presentation provides an overview of the What Works Clearinghouse (WWC), and an introduction to the standards handbook for evidence in experimental and quasi-experimental designs. The WWC standards handbook is now used to review all ingoing efficacy or effectiveness grants to the Institute of Education Sciences, and proposed projects must meet strict criteria to be eligible for funding. This presentation reviews why the WWC exists, why it reviews studies, and what design elements constitute the three different tiers of evidence standards: Meets standards without reservation, meets standards with reservation, or does not meet standards.