Table 2:
No Correction | ||||
---|---|---|---|---|
Cutoff Score | Sensitivity | Specificity | Youden’s Index | Accuracy |
20 | 18% | 100% | 0.18 | 60.97% |
21 | 29% | 98% | 0.27 | 64.67% |
22 | 40% | 96% | 0.36 | 66.38% |
23 | 56% | 89% | 0.45 | 70.66% |
24 | 66% | 84% | 0.5 | 67.81% |
25 | 74% | 69% | 0.43 | 62.96% |
26 | 84% | 54% | 0.38 | 58.69% |
Education Correction | ||||
Cutoff Score | Sensitivity | Specificity | Youden’s Index | Accuracy |
20 | 17% | 100% | 0.16 | 60.11% |
21 | 26% | 98% | 0.24 | 63.82% |
22 | 39% | 96% | 0.36 | 66.95% |
23 | 56% | 91% | 0.47 | 71.51% |
24 | 65% | 85% | 0.5 | 67.52% |
25 | 74% | 70% | 0.43 | 63.82% |
26 | 84% | 55% | 0.39 | 59.54% |
NACC Regression | ||||
z-Score | Sensitivity | Specificity | Youden’s Index | Accuracy |
−1.5 | 55% | 93% | 0.48 | 75.21% |
−1.25 | 65% | 87% | 0.52 | 76.92% |
−1 | 71% | 80% | 0.51 | 75.78% |
−0.75 | 77% | 69% | 0.45 | 72.36% |
−0.5 | 84% | 61% | 0.45 | 71.23% |
−0.25 | 88% | 51% | 0.40 | 68.38% |
0 | 90% | 40% | 0.30 | 63.53% |