Effect Size Parameters
Select the type of effect size to calculate
Mean of group 1 (treatment/experimental)
Mean of group 2 (control)
Standard deviation of group 1
Standard deviation of group 2
Number of participants in group 1
Number of participants in group 2
Effect Size Benchmarks (Cohen)
| Measure | Small | Medium | Large |
|---|---|---|---|
| d / g | 0.20 | 0.50 | 0.80 |
| r | 0.10 | 0.30 | 0.50 |
| eta² | 0.01 | 0.06 | 0.14 |
| f | 0.10 | 0.25 | 0.40 |