Table 3.
Regression-based methods (RBM)a
| ImPACT score | Grade 9 | Grade 11 | Intercept | Slope | Sxy | 80% CI | 95% CI |
|---|---|---|---|---|---|---|---|
| M (SD) | M (SD) | ||||||
| Verbal Memory | 84.7 (8.5) | 83.9 (10.1) | 62.406 | 0.257 | 9.918 | 79.25 | 95.75 |
| Visual Memory | 72.8 (12.2) | 76.4 (12.3) | 40.892 | 0.488 | 10.748 | 81.13 | 94.81 |
| Visual Motor Speed | 36.4 (6.4) | 40.2 (6.7) | 12.957 | 0.747 | 4.648 | 83.02 | 97.64 |
| Reaction Time | .60 (.07) | .58 (.08) | 0.272 | 0.505 | 0.073 | 87.74 | 96.23 |
| Total Symptom | 5.7 (10.0) | 4.7 (7.2) | 2.937 | 0.306 | 6.542 | 85.85 | 94.34 |
Notes: aSxy=standard error of estimate; CI=confidence interval: numbers represent the percent of participants with change scores within cut-off (80% CI = 1.28, 95% CI = 1.96).