CHAPTER 08
Nonparametric Analysis
Nonparametric Analysis
LEARNING PATH
Topics in this chapter
Read by topic; each article preserves the complete explanations, formulas, and tables from the original notes.
- 01→
Wilcoxon Tests
Distinguish the sign test, rank-sum test for independent groups, and signed-rank test for one-sample or paired data.
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Mood’s Median Test
Compare two independent groups by classifying observations above or below the pooled median and using exact or large-sample inference.
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Kruskal–Wallis Test
Compare three or more independent groups with pooled ranks, a chi-square approximation, tie correction, and post hoc procedures.
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Appendix: Selecting a Statistical Test
Choose a statistical method from the outcome type, sample relationship, target hypothesis, and assumptions of the candidate test.
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