Statistical Test Selection Guide
This interactive tool requires JavaScript. Here is a quick summary of how to choose a test:
- Comparison of Means (Normal Data): Use T-Test (2 groups) or ANOVA (>2 groups).
- Comparison of Means (Non-Normal): Use Mann-Whitney (2 groups) or Kruskal-Wallis (>2 groups).
- Relationship/Correlation: Use Pearson (r) for normal data, Spearman (rho) for ordinal/skewed data.
- Categorical Data: Use Chi-Square test or Fisher's Exact test (if expected count < 5).