Table 4.
Classifier performance of select fluency measures
| Groups Comparison | Sensitivity (%) | Specificity (%) | Accuracy (%) | AUC | cvAUC | pAUC uncorrected/corrected | ||
|---|---|---|---|---|---|---|---|---|
| AR | nfvPPA | lvPPA | 81.8 | 100.0 | 92.0 | 0.86 | .84 | .16/.90 |
| svPPA | 81.8 | 100.0 | 91.7 | 0.96 | .83 | .17/.91 | ||
| NC | 100.0 | 100.0 | 100.0 | 1.00 | .95 | .20/1.00 | ||
| SR | nfvPPA | lvPPA | 90.9 | 78.6 | 84.0 | 0.83 | .76 | .09/.68 |
| svPPA | 90.9 | 84.6 | 87.5 | 0.94 | .79 | .15/.87 | ||
| NC | 100.0 | 100.0 | 100.0 | 1.00 | .90 | .20/1.00 | ||
| PASS | nfvPPA | lvPPA | 27.3 | 100.0 | 68.0 | 0.66 | .56 | .07/.63 |
| svPPA | 100.0 | 61.5 | 79.2 | 0.90 | .67 | .12/.78 | ||
| NC | -- | -- | -- | -- | -- | -- | ||
AR=Articulation rate, SR=Speech rate, PASS=PASS Fluency subscore. Sensitivity = True Positive (TP)/(TP +False Negative (FN)), Specificity = True Negative (TN)/(TN + False Positive (FP)), Accuracy = (TN + TP)/(TN+TP+FN+FP). AUC= Area under the curve, cvAUC= Cross-validated AUC. pAUCuncorrected =absolute AUC for FPR [0, 0.2]. pAUCcorrected =scaled AUC for FPR [0.0.2] using McClish correction (Maindonald & Braun, 2012)