Table 4 Expected effect size
Assumed true intervention effect | Expected between-group difference | Pooled within-group SD (σ) | Correlation with baseline value | Statistical power(90 subjects/group) | |
|---|---|---|---|---|---|
Activities of Daily Living Inventory | 0.23σ to 0.31σ | 0.23σ (mean of 0.20σ and 0.26σ) | 17.4 | 0.85 | 82% |