non-parametric

Question 1

Compare 2 related samples, considers only the direction

Answer 1

Sign test

Question 2

Compare 2 independent samples

Answer 2

Wilcoxon rank sum test

Question 3

Compare 2 related samples, focus on both direction and magnitude of the differences

Answer 3

Wilcoxon signed rank test

Question 4

Compare medians of 2/more groups

Answer 4

Median test

Question 5

Compare medians of more than 2 groups when independent variable has one factor

Answer 5

Kruskal-Wallis rank test

Question 6

compare medians of more than 2 groups when independent variable has one factor and data is repeated measures

Answer 6

Friedman test

Question 7

Compare means of 2/more groups when data not normally distributed

Answer 7

Permutation test

Question 8

Compare variances of 2 /more groups, designed for comparing the proportions of “successes” across three or more groups when the same individuals are present in each group

Answer 8

cochran test

Question 9

Compare variances of 2/more groups, used when the data do not meet the assumptions of normality required for parametric tests

Answer 9

Squared rank test for variances

Question 10

measure the strength& direction of the association between 2 variables when data is ordinal

Answer 10

Spearman’s rank correlation coefficient test