Table 4.
Cognitive Test Performance by Group
| Cognitive Test | Control | TBI-Passed | TBI-Failed | Control vs. TBI-Passed | Control vs. TBI- Failed | TBI- Passed vs. TBI- Failed | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mean (SD) | Mean (SD) | Mean (SD) | p | p | ||||||
| CVLT-II 1-5 Total T-Score | 54.57 | (10.06) | 49.25 | (9.79) | 38.31 | (7.80) | p < .001 | .09 | .00 | .01 |
| CVLT-II Long Delay Free Recall Z-score | .15 | (1.10) | −.23 | (1.10) | −1.77 | (1.09) | p < .001 | .39 | .00 | .00 |
| CVLT-II Total Recognition Discriminability | .08 | (1.05) | −.22 | (1.01) | −1.59 | (1.13) | p < .001 | .50 | .00 | .00 |
| D-KEFS Letter Fluency Scaled Score | 11.61 | (2.86) | 9.95 | (3.33) | 9.00 | (2.58) | p < .05 | .10 | .05 | .62 |
| D-KEFS Category Fluency Scaled Score | 12.35 | (2.77) | 11.17 | (3.26) | 9.00 | (2.86) | p < .05 | .31 | .01 | .09 |
| D-KEFS Category- Switching Total Correct Scaled Score | 12.65 | (3.02) | 10.65 | (3.45) | 8.25 | (3.25) | p < .001 | .06 | .00 | .07 |
| D-KEFS Trails Number Sequencing Scaled Score | 11.52 | (2.19) | 10.73 | (2.49) | 9.33 | (2.71) | p = .05 | .43 | .04 | .20 |
| D-KEFS Trails Letter Sequencing Scaled Score | 11.39 | (2.06) | 10.51 | (2.63) | 9.42 | (2.35) | p = .05 | .49 | .04 | .18 |
| D-KEFS Trails Number-Letter Sequencing Scaled Score | 10.91 | (1.59) | 9.37 | (2.89) | 7.17 | (3.51) | p < .005 | .07 | .00 | .04 |
| WCST-64 Preservative Responses T- Score | 47.41 | (5.80) | 46.95 | (7.18) | 48.08 | (11.64) | p = .90 | .97 | .97 | .90 |
| WCST-64 Total Errors T-Score | 50.95 | (5.73) | 50.59 | (7.19) | 49.00 | (13.69) | p = .79 | .98 | .79 | .83 |
CVLT-II = California Verbal Learning Test-II Edition; D-KEFS = Delis-Kaplan Executive Function System; WCST-64 = Wisconsin Card Sorting Test- 64 Card Version