Table 4.
Effects of True and Working Correlation Structure on Accuracy and Power of Pairwise AUC Comparisons
| Average Root Mean Squared Error | |||
|---|---|---|---|
| Fitted Structure | |||
| True Structure | Indep. | Exch. | AR-1 |
| Independence | 0.0239 | 0.0239 | 0.0239 |
| Exchangeable | 0.0393 | 0.0334 | 0.0362 |
| AR-1 | 0.0340 | 0.0337 | 0.0326 |
| Checkerboard | 0.0304 | 0.0290 | 0.0304 |
| Power for Nonnegligible Contrasts | |||
| Fitted Structure | |||
| True Structure | Indep. | Exch. | AR-1 |
| Independence | 0.9990 | 0.9990 | 0.9989 |
| Exchangeable | 0.8241 | 0.9275 | 0.8789 |
| AR-1 | 0.9225 | 0.9293 | 0.9426 |
| Checkerboard | 0.9650 | 0.9756 | 0.9659 |