Table 3.
Neuropsychological Test Performance
| Mean or Percent |
SD or n | Min | Max | ||
|---|---|---|---|---|---|
| Gold Standard Battery T-scores by domain | |||||
| Global | 42.4 | 7.2 | 28 | 62 | |
| Learning | 31.3 | 9.9 | 16 | 56 | |
| Memory | 29.3 | 13.4 | 0 | 60 | |
| Working Memory | 48.1 | 7.3 | 36 | 64 | |
| Processing Speed | 47.5 | 9.7 | 19 | 69 | |
| Motor Function | 44.5 | 10.9 | 21 | 69 | |
| Executive | 45.0 | 8.6 | 26 | 63 | |
| Verbal Fluency | 54.4 | 9.0 | 35 | 79 | |
| Global Deficit Score (GDS) | 1.0 | 0.6 | 0 | 2.7 | |
| Percent with GDS ≥ 0.50 | 75% | 33 | -- | -- | |
| Percent meeting adapted NIH Working Group criteria1 | 82% | 36 | -- | -- | |
| NeuroScreen Raw Scores | |||||
| Verbal Learning Total | 8.5 | 1.5 | 4 | 10 | |
| Verbal Memory (Delayed Recall) | 1.6 | 1.3 | 0 | 5 | |
| Number Span Total | 8.8 | 1.6 | 6 | 13 | |
| Visual Discrimination 1 | 27.0 | 8.9 | 3 | 45 | |
| Visual Discrimination 2 | 12.0 | 4.3 | 6 | 23 | |
| Number Input Speed | 46.0 | 14.0 | 26.5 | 75 | |
| Trails Test 1 | 9.7 | 8.6 | 2.9 | 35 | |
| Trails Test 2 | 14.2 | 10.4 | 3.6 | 40 | |
| Finger Tapping Dominant Hand | 236.6 | 39.0 | 109 | 342 | |
| Finger Tapping Non-dominant Hand | 208.1 | 51.3 | 104 | 338 | |
| Composite Z-Score Total | 0 | 1.0 | −2.2 | 1.6 | |
Note.
1
NIH Working Group (Antinori et al., 2007) criteria of at least 2 neurocognitive domains 1 standard deviation below the mean without taking into consideration functional impairment.