The Wilcoxon signed-ranks test
A) is used for between-subjects designs.
B) takes into account both the magnitude and the direction of the difference between paired scores.
C) cannot be used for within-subjects designs.
D) is a parametric test.

Question

Quizplus · Accepted Answer

The Wilcoxon signed-ranks test is a non-parametric statistical test that compares two related samples, matched samples, or repeated measurements on a single sample to assess whether their population mean ranks differ. It is used for within-subjects designs (not between-subjects) and considers both the magnitude and direction of differences between paired scores, unlike parametric tests which assume a specific distribution in the data.

The Wilcoxon Signed-Ranks Test