Non-parametric Rank Correlation Tests – Practice Quiz

Test ordinal association with Spearman and Kendall procedures. Prerequisites: descriptive rank correlation, concordance, standard errors and hypothesis tests. Apply approximate standardization, calculate null-tail probabilities and build exact independence references while preserving ties. Original scenarios distinguish effect magnitude from evidence, directional alternatives from two-sided tests, zero correlation from independence and iid assumptions from clustered designs. Detailed worked explanations address every alternative.

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