Video and Multimedia
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Parametric Versus Nonparametric Statistics
Comparison of parametric and nonparametric statistics. Also includes examples of nonparametric statistics (10:22).
Another (more brief) overview of the Mann–Whitney U test (4:35).
Gives overview of the Friedman test and goes through an example (3:26).
Brief lecture of the Kruskal–Wallis test (5:19).
Gives overview of the Mann–Whitney U test and goes through an example (9:45).
This brief podcast compares ordinal data to other types of data through discussion of two examples (6:42).
This lecture covers the difference between parametric and nonparametric tests and presents the Wilcoxon test. This includes a video but can be used as audio only (21:16).
Procedures Applicable to Ordinal Data
This website provides an overview of the Mann–Whitney U Test, the Wilcoxon Signed-Ranks Test, the Kruskal–Wallis Test, and the Friedman Test.
Describes nonparametric tests, types of nonparametric tests, and when to use each.
Provides a brief description of the one-sample sign test.