Table A5.
Christchurch Sample: Descriptive Statistics for Disruptive Behavior Scales
| Aggression |
Opposition |
Hyperactivity |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Age (in years) | M | SD | α | M | SD | α | M | SD | α |
| Boys | |||||||||
| 7 | .19 | .38 | .83 | .18 | .34 | .86 | .51 | .54 | .91 |
| 8 | .16 | .32 | .80 | .20 | .36 | .87 | .52 | .56 | .92 |
| 9 | .20 | .39 | .84 | .24 | .40 | .89 | .52 | .55 | .92 |
| 10 | .19 | .39 | .86 | .29 | .43 | .89 | .57 | .56 | .91 |
| 11 | .19 | .39 | .84 | .27 | .43 | .90 | .49 | .54 | .92 |
| 12 | .18 | .39 | .85 | .26 | .43 | .90 | .54 | .57 | .92 |
| 13 | .16 | .36 | .84 | .25 | .40 | .88 | .51 | .54 | .91 |
| Girls | |||||||||
| 7 | .07 | .19 | .68 | .09 | .24 | .84 | .25 | .39 | .89 |
| 8 | .05 | .16 | .66 | .08 | .20 | .78 | .24 | .37 | .87 |
| 9 | .08 | .22 | .75 | .11 | .27 | .85 | .25 | .41 | .90 |
| 10 | .06 | .20 | .73 | .12 | .28 | .83 | .25 | .39 | .89 |
| 11 | .06 | .20 | .75 | .12 | .28 | .86 | .22 | .36 | .88 |
| 12 | .08 | .23 | .75 | .14 | .33 | .89 | .24 | .39 | .90 |
| 13 | .05 | .17 | .63 | .15 | .31 | .88 | .23 | .36 | .89 |
Note. Mean disruptive behavior scores range from 0 to 2.