The Mann-Whitney U test is the non-parametric equivalent of which parametric test?
- A Unpaired (independent samples) t-test ✓
- B Paired t-test
- C One-way ANOVA
- D Pearson correlation
Correct answer: A. Unpaired (independent samples) t-test
Explanation
The Mann-Whitney U test compares the distributions of two independent groups without assuming normality — it is used when the assumptions of the unpaired t-test (normality, homogeneity of variance) are not met. The Wilcoxon signed-rank test is the non-parametric equivalent of the paired t-test; Kruskal-Wallis is the non-parametric equivalent of one-way ANOVA.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.