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Download full textWhat Works Clearinghouse, 2015
The What Works Clearinghouse (WWC) Standards Briefs explain the rules the WWC uses to evaluate the quality of studies for practitioners, researchers, and policymakers. This brief explains what baseline equivalence is and why it matters. As part of the WWC review process for certain types of studies, reviewers assess whether the intervention group…
Descriptors: Control Groups, Participant Characteristics, Matched Groups, Research Methodology
