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Download full textBloom, Howard S.; Weiss, Michael J. – MDRC, 2018
The benefits of understanding variation apply on multiple levels. Local policymakers and practitioners need to know both the average impact of an intervention and its variation across settings to properly assess its likely benefits and risks for their jurisdictions. For social scientists, cross-site impact variation offers opportunities to learn…
Descriptors: Program Effectiveness, Research Methodology, Geographic Location, Intervention
