Table 2 Power to detect differences in the means across a range of ICCs, for primary outcomes (assuming n=96)
Standardize change of 0.67 SDs | Standardized change of 0.60 SDs | ||
|---|---|---|---|
ICC | Power | ICC | Power |
0.01 | 87% | 0.01 | 84% |
0.1 | 86% | 0.1 | 86% |
0.2 | 83% | 0.2 | 76% |
0.25 | 82% | 0.25 | 74% |