Table 4.
Effect Sizes for Pre- to Post-Intervention Change within Status and Intervention Group
| Measure | At-risk for ADHD PA Group | At-risk for ADHD SC Group | Typically Developing PA Group | Typically Developing SC Group |
|---|---|---|---|---|
| Parent Reports | ||||
| HI Symptoms | .69 | .57 | .65 | .31 |
| IA Symptoms | .65 | .46 | .68 | .13 |
| Opp. Symptoms | .31 | .53 | .19 | .11 |
| Moodiness | .40 | .23 | .21 | −.26 |
| Peer Behavior | .54 | .34 | .24 | .26 |
| Peer Reputation | .30 | .19 | .26 | −.15 |
| Teacher Reports | ||||
| HI Symptoms | .54 | .60 | .10 | .29 |
| IA Symptoms | .61 | .62 | .08 | .24 |
| Opp. Symptoms | .18 | .09 | .01 | .03 |
| Moodiness | .07 | .17 | .02 | .00 |
| Peer Behavior | .32 | .22 | .21 | .15 |
| Peer Reputation | .16 | .01 | .15 | .01 |
Notes. Effect sizes representing significant (p < .05) adaptive pre-post intervention change are in boldface. Effect sizes (i.e., Cohen's d) were calculated by dividing the pre-post change over the course of the intervention by the pooled standard deviation of the pre-test scores for the focal status group (i.e., ADHD-risk or TD). PA = physical activity; SC = sedentary classroom-based; HI = hyperactivity/impulsivity; IA = inattention; Opp. = oppositional.