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DeCoster, Jamie; Iselin, Anne-Marie R.; Gallucci, Marcello – Psychological Methods, 2009
Despite many articles reporting the problems of dichotomizing continuous measures, researchers still commonly use this practice. The authors' purpose in this article was to understand the reasons that people still dichotomize and to determine whether any of these reasons are valid. They contacted 66 researchers who had published articles using…
Descriptors: Statistical Analysis, Classification, Monte Carlo Methods, Predictor Variables