Social & Preventive Medicine A ‘non-parametric test’ used to compare three or more independent groups of sampled data? A Chi-square test B Fishers test C Kruskal-Wallis test D McNemar test 💡 Explanation A 'non-parametric test' used to compare three or more independent groups of sampled data? ✓ Correct Answer: C. Kruskal-Wallis test