The Internal and External Validity of the Regression Discontinuity Design: A Meta-Analysis of 15 Within-Study Comparisons

Duncan D. Chaplin, Thomas D. Cook, Jelena Zurovac, Jared S. Coopersmith, Mariel M. Finucane, Lauren N. Vollmer and Rebecca E. Morris

Mathematica Policy Research Reports from Mathematica Policy Research

Abstract: We test RD’s validity across 15 studies, each of which compared impact estimates from RD with those from a corresponding RCT. We find bias below 0.01 standard deviations on average, and below 0.07 by study based on results shrunken to capitalize on information from the other studies.

Keywords: Regression Discontinuity Design; Internal and External Validity (search for similar items in EconPapers)
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