Which Nonparametric Test Is Used to Test for Agreement in Ranks

question 47

Multiple Choice

Which nonparametric test is used to test for agreement in ranks of paired data?

• A)Spearman test
• B)Friedman test
• C)Wilcoxon rank sum (Mann-Whitney) test
• D)Kruskal-Wallis test

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Definitions:

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect exists among the variables being studied.

Test Statistic

A numerical quantity calculated from a set of data, used in statistical testing to determine the significance of observed differences.

Distribution

Describes the way values of a variable or set of data are spread or dispersed.

P-Value

The probability of obtaining an observed sample result, or more extreme, assuming the null hypothesis is true.