Different Statistical Tests

Question 1

Test of Difference

Answer 1

Mann-Whitney- test of difference between two sets of data, unrelated design, data at least ordinal level

Wilcoxon- Test of difference between two sets of data, related design, data at least ordinal level

Question 2

Parametric test of difference

Answer 2

Unrelated t-test- test of difference between two sets of data, unrelated design, data at interval level, data drawn from normally distributed sample population and homogeneity of variance

Related t-test- test of difference between two sets of data, related design, data at interval level, data drawn from normally distributed sample population and homogeneity of variance

Question 3

Tests of Correlation

Answer 3

Spearman’s- test of correlation between co-variables, data at least ordinal level

Pearson’s- test of correlation between co-variables, data at interval level, data drawn from a normally distributed population and homogeneity of variance

Question 4

Test of Difference/ Association

Answer 4

Chi-Squared- test of difference between two sets of data or association between co-variables, data is independent, nominal data