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Direct linkMark Fredrickson; Ben B. Hansen – Society for Research on Educational Effectiveness, 2021
Context: Assessments of baseline equivalency of intervention and control groups, "balance," play a critical role in evaluating educational interventions. The highest What Works Clearinghouse (WWC) of the Institute of Educational Studies (IES) standard for educational studies, "Meets WWC Design Standards Without Reservations,"…
Descriptors: Educational Research, Experimental Groups, Control Groups, Intervention
