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Shadish, William R.; Galindo, Rodolfo; Wong, Vivian C.; Steiner, Peter M.; Cook, Thomas D. – Psychological Methods, 2011
In this article, we review past studies comparing randomized experiments to regression discontinuity designs, mostly finding similar results, but with significant exceptions. The latter might be due to potential confounds of study characteristics with assignment method or with failure to estimate the same parameter over methods. In this study, we…
Descriptors: Regression (Statistics), Experiments, Comparative Analysis, Nonparametric Statistics
Narayanan, Pankaja; Swaminathan, H. – 1993
The purpose of this study was to compare two non-parametric procedures, the Mantel-Haenszel (MH) procedure and the simultaneous item bias (SIB) procedure, with respect to their Type I error rates and power, and to investigate the conditions under which asymptotic distributional properties of the SIB and MH were obtained. Data were simulated to…
Descriptors: Ability, Comparative Analysis, Computer Simulation, Control Groups