Chapter 7
Inferences Involving Rank Data
One-sample Tests (two measures)^
7.1 Correlation an overview 207
7.2 Spearman’s rho (rank order correlation coefficient) 210
One-sample test for correlation with nonparametric ranked data.
7.3 Runs test 217
One-sample test for randomness in an observed sequence (order) of events when
eachevent can be coded as binary.^
Two-sample Tests^
7.4 Wilcoxon Mann-Whitney Test 221
A non-parametric equivalent to the independent t-test and should be considered
when data can be ranked.^
7.5 Wilcoxon Signed Ranks test (for related data) 230
An alternative nonparametric test to the sign test or related t-test when data can
be ranked.^
Multiple-sample Tests^
One independent variable
7.6 Kruskal-Wallis One-way ANOVA 236
A nonparametric equivalent to a one-way ANOVA for independent samples, and
is used when data is ranked.^
7.7 Friedman’s ANOVA by ranks (for related data) 243
A nonparametric equivalent to a related ANOVA and is used when data is
ranked.^
