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WILCOXON TEST(2)
[Named after the statistician F, Wilcoxon ()] This is a test for an EXPERIMENTAL DESIGN involving two INDEPENDENT GROUPS of experimental units, where data need be only ORDINAL-SCALE. The purpose is to measure shift in scale location between the two groups. The TEST STATISTIC is the sum, for a nominated group, of the ranks of the data for the groups combined. This test has an EQUIVALENT TEST STATISTIC to that for the MANN-WHITNEY TEST, so the two tests must always agree. Also see : PITMAN PERMUTATION TEST(1).
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