Table A8.
Pittsburgh Sample: Descriptive Statistics for Disruptive Behavior Scales
| Aggression |
Opposition |
Hyperactivity |
Conduct problems |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age (in years) | M | SD | α | M | SD | α | M | SD | α | M | SD | α |
| Boys | ||||||||||||
| 7.5 | .25 | .46 | .91 | .42 | .56 | .89 | .71 | .65 | .82 | .15 | .33 | .75 |
| 8 | .37 | .57 | .93 | .56 | .65 | .89 | .77 | .68 | .84 | .20 | .36 | .72 |
| 8.5 | .33 | .55 | .94 | .50 | .62 | .90 | .71 | .67 | .85 | .17 | .36 | .80 |
| 9 | .43 | .62 | .94 | .64 | .69 | .91 | .74 | .70 | .88 | .25 | .44 | .84 |
| 9.5 | .40 | .57 | .93 | .58 | .65 | .90 | .71 | .68 | .86 | .20 | .37 | .80 |
| 10 | .51 | .65 | .94 | .77 | .70 | .91 | .78 | .68 | .85 | .30 | .46 | .81 |
| 10.5 | .34 | .55 | .88 | .57 | .64 | .90 | .66 | .65 | .85 | .22 | .40 | .77 |
Note. Mean disruptive behavior scores range from 0 to 2.