Table 2 Comparisons between intervention group and control group on outcome measures (knowledge of ADHD, attitude to ADHD, and knowledge of behavioural intervention)
Variable | Intervention group mean (SD) | Control group mean (SD) | F value (1,143) | p value | Effect size (Cohen d) | ||||
|---|---|---|---|---|---|---|---|---|---|
Pre n = 76 | Post n = 76 | Difference | Pre n = 71 | Post n = 71 | Difference | ||||
Knowledge of ADHD | 11.03 (4.13) | 14.74 (3.25) | t = −8.33 p < 0.001 | 11.04 (4.01) | 11.80 (3.50) | t = −1.67 p = 0.10 | 38.1 | 0.000 | 0.9 |
Attitude towards ADHD | 93.59 (10.28) | 88.08 (7.67) | t = 5.22 p < 0.001 | 93.49 (8.14) | 92.37 (8.94) | t = 0.93 p = 0.35 | 11.0 | 0.001 | 0.5 |
Knowledge of behavioural intervention | 7.39 (2.88) | 8.37 (2.12) | t = −3.11 p = 0.003 | 6.54 (2.69) | 7.04 (2.36) | t = −1.42 p = 0.16 | 9.5 | 0.002 | 0.6 |