Table 2.
Neurocognitive testing results
| Neurocognitive variable | N | Mean (SD) | N (%) at riska |
|---|---|---|---|
| Full-Scale IQ | 409 | 98 (16) | 75 (18) |
| K-CPT or CPT-II | |||
| Errors of omission | 352 | 53 (16) | 123 (35) |
| Errors of commission | 355 | 52 (11) | 140 (39) |
| Hit reaction | 355 | 47 (12) | 97 (27) |
| Correct detection | 355 | 52 (11) | 120 (34) |
| Variability scaled score | 354 | 51 (12) | 138 (39) |
| BRIEF Global Executive Composite | 394 | 53 (12) | 118 (30) |
| D-KEFS Tower Total Achievement Score | 357 | 10 (3) | 24 (7) |
| BASC-2 (parent report) | |||
| Behavioral Symptoms Summary | 369 | 49 (10) | 89 (24) |
| Externalizing Problems Summary | 367 | 49 (10) | 87 (24) |
| Internalizing Problems Summary | 368 | 49 (9) | 92 (25) |
| Adaptive Behavior Summary | 368 | 49 (11) | 80 (22) |
| Hyperactivity Clinical Scale | 372 | 50 (10) | 101 (27) |
| Attention Clinical Scale | 372 | 51 (10) | 118 (32) |
Percent of subjects > 1 or < 1 standard deviation below normative mean. Please note that the directionality of the scores is different for each measure, with higher scores on several tests reflecting more intact performance and higher scores on other tests reflecting more impaired performance. Specifically, IQ scores are reported as standard scores with means of 100 and standard deviation of 15; higher scores reflect more intact performance. CPT and BRIEF scores are reported as T-score with a mean of 50 and SD of 10; higher scores reflect more impaired abilities. D-KEFS scores are reported as scaled scores, with a mean of 10 and SD of 3; higher scores reflect more intact performance. BASC-2 scores are reported as T-scores with a mean of 50 and SD 10. Higher scores reflect more impaired performance, except for the adaptive composite where higher scores reflect more intact performance