1. Related groups. (1 DV, 1 IV variable)
1.1. 2 Groups
1.1.1. Categorical
1.1.1.1. McNemar's test
1.1.2. Ordinal
1.1.2.1. Wilcoxon signed ranks test
1.1.3. Interval
1.1.3.1. Wilcoxon signed ranks test
1.1.3.2. Paired t-test (normally distributed data)
1.2. 2+ Groups
1.2.1. Categorical
1.2.1.1. Repeated Measures Logistic Regression (Binomial outcome)
1.2.2. Ordinal
1.2.2.1. Friedman test
1.2.3. Interval
1.2.3.1. Friedman test
1.2.3.2. One-way Repeated Measures ANOVA (normally distributed data)
2. Some Other Cases
2.1. Time-to-Event Data
2.1.1. Survival Analysis
2.2. Crossover Design
2.2.1. Factorial ANOVA
3. Only 1 Group
3.1. Categorical
3.1.1. Chi-square goodness-of-fit
3.2. Ordinal
3.2.1. One-sample median
3.3. Interval
3.3.1. One-sample median
3.3.2. One-sample t-test (normally distributed data)
4. Independent Groups. (1DV, 1 IV variable)
4.1. 2 Groups
4.1.1. Categorical
4.1.1.1. Chi-square test
4.1.1.2. Fisher’s exact test
4.1.2. Ordinal
4.1.2.1. Wilcoxon-Mann Whitney test
4.1.3. Interval
4.1.3.1. Wilcoxon-Mann Whitney test
4.1.3.2. 2 independent sample t-test (normally distributed data)
4.2. 2+ Groups
4.2.1. Categorical
4.2.1.1. Chi-square test
4.2.2. Ordinal
4.2.2.1. Kruskal Wallis
4.2.3. Interval
4.2.3.1. Kruskal Wallis
4.2.3.2. One-way ANOVA (normally distributed data)