Table 1.
Baseline and Posttreatment Comparisons for Student Outcome Measures
| Baseline mean (SD) | Post mean (SD) | ES | Z value (95% CI) | p value | |
|---|---|---|---|---|---|
| CSI ADHD symptom severity (P) | 1.76 (.54) | 1.19 (.56) | 1.09 | −7.69 (−9.70, −5.75) | p < .001 |
| COSS (P) | 159.63 (20.51) | 139.12 (23.15) | .93 | −6.80 (−8.76, −4.84) | p < .001 |
| HPC (P) | 52.77 (10.46) | 41.54 (12.00) | .89 | −5.87 (−7.83, −3.91) | p < .001 |
| CSI ADHD symptom severity (T) | 1.74 (.55) | 1.14 (.52) | 1.23 | −11.90 (−13.92, −9.98) | p < .001 |
| COSS (T) | 95.23 (13.93) | 85.45 (15.68) | .71 | −5.50 (−7.46, −3.86) | p < .001 |
| ACES-Academic skills (T) | 82.48 (23.70) | 87.35 (24.40) | .41 | 3.12 (1.16, 5.08) | p = .002 |
| WJ-Reading fluency | 33.19 (12.70) | 36.35 (13.39) | .52 | 3.70 (1.74, 5.66) | p < .001 |
| WJ-Passage comprehension | 24.75 (4.79) | 26.95 (4.83) | .63 | 2.76 (.59, 4.72) | p = .006 |
| WJ-Calculations | 13.49 (3.96) | 15.74 (4.58) | .81 | 3.70 (1.74, 5.66) | p < .001 |
| WJ-Math fluency | 41.82 (16.11) | 46.30 (19.37) | .51 | 6.97 (5.02, 8.94) | p < .001 |
| BOSS-Engagement | 64.43 (14.99) | 74.77 (13.46) | .70 | 5.43 (3.47, 7.39) | p < .001 |
| Language arts report card grades | 2.07 (.59) | 2.56 (.63) | 1.24 | 5.90 (3.96, 7.89) | p < .001 |
| Math report card grades | 2.11 (.56) | 2.47 (.68) | .77 | 3.58 (1.63, 5.56) | p < .001 |
Note. ACES = Academic Competence Evaluation Scale; ADHD = Attention-Deficit/Hyperactivity Disorder; COSS = Children’s Organizational Skills Scale; CSI = Child Symptom Inventory; ES = Cohen’s d effect sizes; HPC = Homework Problems Checklist; P = parent-completed; SD = standard deviation; T = teacher-completed; WJ = Woodcock-Johnson Test of Academic Achievement.