Table 10. Standardized* Behavior Scores - Teacher rated† (per protocol), means (sd).
| Baseline | Post-Intervention | Change Score | |||||
| Active (n = 158) | Placebo (n = 171) | Active (n = 150) | Placebo (n = 147) | Active (n = 134) | Placebo (n = 139) | P | |
| Oppositional | 54.5 (12.6) | 56.3 (14.2) | 54.0 (12.9) | 55.2 (12.5) | −0.1 (8.1) | −0.8 (9.0) | 0.578 |
| Cognitive Problems | 61.8 (9.8) | 61.5 (8.9) | 60.1 (9.5) | 60.2 (8.9) | −1.4 (7.3) | −1.0 (8.0) | 0.702 |
| Hyperactivity | 53.4 (11.0) | 53.4 (10.8) | 52.9 (10.3) | 51.8 (9.9) | 0.2 (6.6) | −0.9 (7.3) | 0.257 |
| Anxiety | 57.2 (11.3) | 57.7 (13.3) | 55.1 (12.1) | 55.1 (12.1) | −2.3 (9.3) | −1.1 (10.4) | 0.121 |
| Perfectionism | 48.6 (8.9) | 47.8 (7.8) | 48.9 (8.4) | 47.4 (7.1) | 0.6 (5.8) | −0.4 (6.7) | 0.107 |
| Social Problems | 53.7 (10.8) | 54.3 (11.2) | 53.1 (10.3) | 53.5 (10.8) | −0.8 (7.9) | −0.6 (9.5) | 0.755 |
| ADHD Index | 56.1 (11.5) | 56.0 (10.5) | 54.3 (10.8) | 55.1 (9.9) | −1.4 (7.5) | −0.1 (8.3) | 0.104 |
| Global Restless-Impulsive | 56.1 (11.8) | 55.8 (10.7) | 54.9 (11.5) | 54.9 (10.2) | −0.7 (7.9) | −0.1 (8.5) | 0.597 |
| Global Emotional Lability | 53.0 (11.5) | 54.3 (13.7) | 52.3 (10.9) | 52.8 (11.5) | 0.1 (8.8) | −0.5 (9.0) | 0.949 |
| Global Index Total | 55.6 (11.9) | 56.0 (11.7) | 54.5 (11.6) | 54.7 (10.6) | −0.5 (8.0) | −0.3 (8.3) | 0.653 |
| DSM-IV Inattention | 57.8 (10.5) | 58.4 (9.8) | 56.5 (10.6) | 56.5 (9.7) | −1.2 (7.9) | −1.4 (8.5) | 0.817 |
| DSM-IV Hyperactive-Impulsive | 52.8 (11.4) | 52.2 (10.5) | 51.5 (10.3) | 50.9 (9.7) | −0.6 (6.8) | −0.6 (6.9) | 0.986 |
| DSM-IV Total ADHD | 56.1 (10.6) | 56.3 (9.7) | 54.8 (10.5) | 54.5 9.1) | −0.9 (7.0) | −1.2 (7.5) | 0.951 |
*
T scores have a mean of 50, sd = 10. They are symptom scales so for values above the mean, higher scores indicate more severe difficulties with behaviour and/or attention.
†
Behavior measures are derived from the Conners' Teacher Rating Scale.15