How Much Do the Effects of Education and Training Programs Vary Across Sites? Evidence from Past Multisite Randomized Trials

Michael J. Weiss, Howard S. Bloom, Natalya Verbitsky-Savitz, Himani Gupta, Alma E. Vigil and Daniel N. Cullinan

Mathematica Policy Research Reports from Mathematica Policy Research

Abstract: Multisite trials, in which individuals are randomly assigned to alternative treatment arms within sites, offer an excellent opportunity to estimate the cross-site average effect of treatment assignment (intent to treat or ITT) and the amount by which this impact varies across sites.

Keywords: design parameters; minimum detectable effect; power calculation; effect variation; external validity (search for similar items in EconPapers)
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