Table 1.
Participant Characteristics
| Time 1 | Time 2 | Time 3 | ||||
|---|---|---|---|---|---|---|
|
| ||||||
| N | ADHD M (SD) 44 |
Non-ADHD M (SD) 100 |
ADHD M (SD) 49 |
Non-ADHD M (SD) 95 |
ADHD M (SD) 56 |
Non-ADHD M (SD) 88 |
| Age | 5.48 (.47)* | 5.25 (.51)* | 6.42 (.50) | 6.30 (.50) | 7.47 (.50)* | 7.28 (.52)* |
| # (%) Males | 33 (75%) | 69 (69%) | 36 (74%) | 66 (70%) | 42 (75%) | 60 (68%) |
| FSIQ | 104.36 (13.34) | 108.73 (13.42) | 103.59 (12.74)* | 109.36 (13.52)* | 103.86 (12.94)* | 109.65 (13.43)* |
| SES | 59.34(18.09)** | 67.97(16.36)** | 60.90 (17.93)* | 67.62 (16.61)* | 61.27 (18.30)* | 67.92 (16.23)* |
| # (%) ODD** | 19 (43%) | 6 (6%) | 16 (33%) | 8 (8%) | 20 (36%) | 1 (1%) |
| ADHD-RS Home Total** | 28.93 (10.21) | 11.19 (8.67) | 27.00 (11.47) | 10.21 (8.51) | 26.82 (11.52) | 9.15 (7.99) |
| ADHD-RS School Total** | 28.76 (12.44) | 9.56 (10.56) | 27.37 (14.03) | 9.75 (9.51) | 25.66 (14.63) | 9.46 (8.55) |
| BASC-2 (T-scores) | ||||||
| Parent Attention Problems** | 64.98 (7.44) | 49.48 (9.97) | 63.96 (8.22) | 49.52 (10.69) | 65.83 (7.12) | 47.21 (10.45) |
| Parent Hyperactivity** | 67.32 (11.16) | 48.85 (9.97) | 64.91 (13.39) | 48.50 (10.47) | 64.26 (12.74) | 44.57 (8.32) |
| Teacher Attention Prob.** | 60.21 (8.85) | 47.71 (10.56) | 60.83 (9.85) | 48.11 (9.89) | 59.82 (9.28) | 50.07 (8.43) |
| Teacher Hyperactivity** | 65.84 (12.98) | 49.82 (9.42) | 62.26 (13.54) | 49.19 (9.12) | 61.71 (13.82) | 49.67 (8.36) |
Note. FSIQ = Full Scale IQ as measured by the WPPSI-III at baseline; SES = Socioeconomic Status at baseline; ADHD-RS Total = ADHD Rating Scale; BASC-2 =Behavior Assessment System for Children-Second Edition T-score;
*
p<.05,
**
p<.01, indicating group differences at each time point.
Asterisks alongside ADHD-RS and BASC measures are indicative of significant (p<.01) group differences at all time points.