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Wong, Vivian C.; Steiner, Peter M.; Cook, Thomas D. – Society for Research on Educational Effectiveness, 2009
This paper introduces a generalization of the regression-discontinuity design (RDD). Traditionally, RDD is considered in a two-dimensional framework, with a single assignment variable and cutoff. Treatment effects are measured at a single location along the assignment variable. However, this represents a specialized (and straight-forward)…
Descriptors: Regression (Statistics), Generalization, Educational Indicators, Federal Programs