Types of Tests

Nonparametric Tests

Friedman Test

M. Friedman. The use of ranks to avoid the assumption of normality implicit in the analysis of variance. Journal of the American Statistical Association (1937).

Friedman Test with Post-Hoc Analysis

W. J. Conover. Practical Nonparametric Statistics (1998).

Mann-Whitney U Test (Uses tie-handling and continuity correction)

H. B. Mann, D. R. Whitney. On a Test of Whether one of Two Random Variables is Stochastically Larger than the Other. Annals of Mathematical Statistics (1947).

Wilcoxon Signed-Rank Test

F. Wilcoxon. Individual comparisons by ranking methods. Breakthroughs in Statistics (1992).

Wilcoxon Rank-Sum Test

H. B. Mann, D. R. Whitney. On a Test of Whether one of Two Random Variables is Stochastically Larger than the Other. Annals of Mathematical Statistics (1947).