Table 4 Summary of reliability and responsiveness indices
Property | Index | NDI |
|---|---|---|
Reliability | Cronbach alpha | 0.85 |
Intraclass Correlation Coefficient | 0.93 (95%CI 0.84–0.97) | |
Responsiveness | Spearman's correlation coefficient | 0.3 (P = 0.02) |
Standard Error of Measurement | 0.64 | |
Minimal Detectable Change | 1.78 |