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NON-PARAMETRIC TEST
A number of statistical tests were devised, mostly over the period 1930-1960, with the specific objective of by-passing assumptions about sampling from populations with data supposedly conforming to theoretically modelled statistical distributions wuch as the NORMAL DISTRIBUTION. Several of these tests were explictly concerned with ORDINAL-SCALE data for which modelling based upon continuous functions is clearly inappropriate. These tests are implicitly RE-RANDOMISATION TESTS. Also see : BINOMIAL TEST, MANN-WHITNEY TEST, WILCOXON TEST(1 and 2).
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