The Two-sample Rank-sum Test: Early Development
نویسندگان
چکیده
The historical development of the two-sample rank-sum test is explored. While most textbooks and journal articles attribute the origin of the two-sample rank-sum test to Wilcoxon (1945) and/or Mann and Whitney (1947), the test was independently developed by at least six researchers in the late 1940s and early 1950s. In addition to Wilcoxon and Mann and Whitney, Festinger (1946), Whitfield (1947), Haldane and Smith (1948), and van der Reyden (1952) autonomously published methodologically distinct, but equivalent versions of the two-sample rank-sum test. In this article the historical development of the six approaches are described and compared. Key names: L. Festinger, J. B. S. Haldane, H. B. Mann, D. van der Reyden, C. A. B. Smith, J. W. Whitfield, D. R. Whitney, F. Wilcoxon
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