Enter counts for a 2 × 2 table (Group 1 vs Group 2).
How to use this page
Cohen’s d & Hedges’ g – Provide group means, standard deviations and sample sizes. The calculator
outputs the pooled-SD standardised mean difference (d) and its small-sample correction (g).
Odds & Risk Ratios – Supply 2 × 2 counts (events/non-events). The calculator returns the odds ratio (OR) and risk
ratio (RR).