Table 2.
Summary of regression models.
| Dependent variables | Sensation Seeking | Time 3 - CBQ temperament scales Effortful Control | Negative Affect |
|---|---|---|---|
| Step 1 | |||
| Adjusted R square | −.03 | −.04 | −.03 |
| Degrees of freedom | 2, 49 | 2, 49 | 2, 49 |
| Sig. F change | .71 | .87 | .70 |
| Sex of child | |||
| Standardized beta | −.04 | −.05 | −.04 |
| Significance | .80 | .71 | .81 |
| Age of child at T3 | |||
| Standardized beta | .11 | .05 | −.12 |
| Significance | .44 | .71 | .42 |
| Step 2 | |||
| Adjusted R square | −.01 | −.05 | −.02 |
| Degrees of freedom | 2, 47 | 2, 47 | 2, 47 |
| Sig. F change | .29 | .57 | .32 |
| DRD4 7-repeat status | |||
| Standardized beta | −.20 | .14 | .22 |
| Significance | .16 | .33 | .14 |
| Parenting quality | |||
| Standardized beta | .10 | .07 | .03 |
| Significance | .51 | .65 | .83 |
| Step 3 | |||
| Adjusted R square | −.02 | .08 | −.04 |
| Degrees of freedom | 1, 46 | 1, 46 | 1, 46 |
| Sig. F change | .44 | .008* | .66 |
| DRD4 7-R X parenting quality | |||
| Standardized beta | −.14 | .47 | .08 |
| Significance | .44 | .008* | .66 |
*
Denotes P < 0.05.