Statistical Test Selection

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Statistical Test Selection by Mind Map: Statistical Test Selection

1. Only 1 Group

1.1. Categorical

1.1.1. Chi-square goodness-of-fit

1.2. Ordinal

1.2.1. One-sample median

1.3. Interval

1.3.1. One-sample median

1.3.2. One-sample t-test (normally distributed data)

2. Independent Groups. (1DV, 1 IV variable)

2.1. 2 Groups

2.1.1. Categorical

2.1.1.1. Chi-square test

2.1.1.2. Fisher’s exact test

2.1.2. Ordinal

2.1.2.1. Wilcoxon-Mann Whitney test

2.1.3. Interval

2.1.3.1. Wilcoxon-Mann Whitney test

2.1.3.2. 2 independent sample t-test (normally distributed data)

2.2. 2+ Groups

2.2.1. Categorical

2.2.1.1. Chi-square test

2.2.2. Ordinal

2.2.2.1. Kruskal Wallis

2.2.3. Interval

2.2.3.1. Kruskal Wallis

2.2.3.2. One-way ANOVA (normally distributed data)

3. Related groups. (1 DV, 1 IV variable)

3.1. 2 Groups

3.1.1. Categorical

3.1.1.1. McNemar's test

3.1.2. Ordinal

3.1.2.1. Wilcoxon signed ranks test

3.1.3. Interval

3.1.3.1. Wilcoxon signed ranks test

3.1.3.2. Paired t-test (normally distributed data)

3.2. 2+ Groups

3.2.1. Categorical

3.2.1.1. Repeated Measures Logistic Regression (Binomial outcome)

3.2.2. Ordinal

3.2.2.1. Friedman test

3.2.3. Interval

3.2.3.1. Friedman test

3.2.3.2. One-way Repeated Measures ANOVA (normally distributed data)

4. Some Other Cases

4.1. Time-to-Event Data

4.1.1. Survival Analysis

4.2. Crossover Design

4.2.1. Factorial ANOVA