Table 3. Outcomes of the 4 Tasks of the CANTAB .
| Task and outcome(s) | Mean (95% CI) | P valuea | ||
|---|---|---|---|---|
| Combined (n = 251) | Boys (n = 116) | Girls (n = 135) | ||
| MOT | ||||
| Latency, msb | 949.2 (920.7-978.6) | 939.7 (896.8-984.6) | 957.4 (919.4-997.0) | .55 |
| Mean accuracy, pixel units | 13.9 (13.6-14.3) | 13.9 (13.5-14.3) | 13.9 (13.4-14.5) | .88 |
| BLC | ||||
| Latency, msb | 1075.3 (1050.5-1100.7) | 1098.9 (1057.0-1142.5) | 1055.5 (1026.6-1085.2) | .10 |
| SSP | ||||
| Span length, No. of boxes | 2.7 (2.6-2.9) | 2.7 (2.5-3.0) | 2.7 (2.5-2.9) | .93 |
| Latency to first response, msb | 3666.3 (3498.2-3842.4) | 3621.8 (3374.1-3887.6) | 3704.9 (3477.7-3947.0) | .64 |
| DMS | ||||
| Latency, msb | 4102.2 (3942.5-4268.5) | 4201.0 (3936.2-4483.6) | 4019.2 (3828.0-4220.0) | .28 |
| Latency of trials with delays, msb | 3841.3 (3657.6-4034.1) | 4012.1 (3712.9-4335.5) | 3700.0 (3476.6-3938.3) | .10 |
| Correct, % | 48.3 (46.5-50.1) | 47.1 (44.2-49.9) | 49.3 (46.9-51.7) | .23 |
| Correct trials with delays, % | 39.7 (37.8-41.5) | 38.7 (35.9-41.5) | 40.5 (38.0-43.1) | .33 |
| Error given correct answer, % | 54.7 (52.2-57.1) | 54.7 (51.2-58.2) | 54.7 (51.1-58.2) | .99 |
| Error given error answer, % | 48.4 (45.9-50.8) | 5.0 (46.3-53.6) | 47.0 (43.7-50.2) | .23 |
Abbreviations: BLC, Big/Little Circle; DMS, Delayed Matching to Sample; MOT, Motor Screening; SSP, Spatial Span.
a
Calculated using a 2-sided t test.
b
Indicates geometric mean.