Table 4.
Mean (SD) accuracy and RT of subscores for three of the computerized tasks
| Measure | CDR 0 | CDR 0.5 | CDR 1 | |
|---|---|---|---|---|
| Noncarrier | Carrier | |||
| Accuracy | ||||
| Simon | ||||
| Congruent | 99.5 (1.6) | 99.0 (2.6) | 96.9 (7.0) | 82.0 (26.6) |
| Incongruent | 96.7 (3.3) | 95.8 (5.9) | 89.7 (14.4) | 74.0 (25.5) |
| Switch | ||||
| Pure | 98.8 (2.0) | 98.1 (4.2) | 91.6 (15.9) | 62.1 (26.8) |
| Switch | 98.2 (3.9) | 97.2 (6.6) | 85.8 (19.8) | 59.4 (23.9) |
| Categorization | ||||
| Exemplars | 91.7 (4.8) | 90.2 (5.7) | 89.4 (8.0) | 82.8 (6.8) |
| Associates | 92.3 (9.0) | 87.7 (15.9) | 77.0 (19.3) | 54.3 (16.5) |
| Reaction time | ||||
| Simon | ||||
| Congruent | 573 (111) | 565 (122) | 725 (268) | 1209 (498) |
| Incongruent | 636 (113) | 637 (148) | 831 (289) | 1300 (499) |
| Switch | ||||
| Pure | 933 (208) | 914 (282) | 1271 (573) | 1933 (874) |
| Switch | 2117 (363) | 2066 (438) | 2528 (687) | 2449 (1100) |
| Categorization | ||||
| Exemplars | 1084 (245) | 1116 (329) | 1200 (276) | 2404 (1027) |
| Associates | 1218 (373) | 1269 (453) | 1592 (521) | 3586 (1983) |