Table 3.
WMTB-C Mean Standard and Component Baseline-to-Endpoint Scores
| WMTB-C Score, Mean (SE) | Group | Baseline | Endpoint | Change |
|---|---|---|---|---|
| Phonological loop | ||||
| Component score | ADHD | 92.4 (12.8) | 95.5 (16.2) | 1.5 (3.2) |
| ADHD+D | 90.8 (13.5) | 96.7 (14.4) | 4.8 (3.0) | |
| Standard score | ADHD | 376.0 (39.3) | 386.4 (49.8) | 5.2 (9.7) |
| ADHD+D | 365.5 (55.6) | 385.5 (54.2) | 20.2 (8.9)a | |
| Central executive | ||||
| Component score | ADHD | 87.8 (15.7) | 97.5 (23.4) | 8.4 (3.8)a |
| ADHD+D | 88.3 (13.3) | 94.2 (14.5) | 4.9 (3.3) | |
| Standard Score | ADHD | 268.1 (40.1) | 292.8 (51.4) | 24.3 (9.8)a |
| ADHD+D | 262.4 (45.7) | 270.8 (44.8) | 5.9 (9.1) | |
| Visuo-spatial sketchpad | ||||
| Component score | ADHD | 83.9 (16.9) | 85.6 (13.1) | 0.6 (4.3) |
| ADHD+D | 87.9 (17.5) | 93.2 (20.1) | 6.9 (4.1) | |
| Standard score | ADHD | 170.3 (33.9) | 178.7 (35.1) | 6.2 (9.1) |
| ADHD+D | 162.8 (47.0) | 173.8 (50.7) | 16.0 (8.5) |
Last Observation Carried Forward LS Means Analyses
a p-value ≤ .05 for within-group changes.
Abbreviations: ADHD = attention-deficit/hyperactivity disorder group; ADHD+D = ADHD and dyslexia group; SE = standard error; WMTB-C = Working Memory Test Battery for Children.