Table 4.
Predictors | Step 1 | Step 2 | Step 3 |
---|---|---|---|
Birth weight (centered and squared) | .00006 | .0008* | .0008* |
Frequency of looking away | .02 | .05** | .05** |
DRD4 | −.94** | −.97** | −1.08** |
Birth weight (centered and squared) X frequency of looking away | - | −.00004* | −.00004* |
Covariates | |||
Postnatal depression | - | - | .03 |
Maternal education – College | - | - | −1.91*** |
Maternal education – University | - | - | −1.33** |
Gender | - | - | .06 |
Mother age of birth | - | - | −.02 |
McFadden R2 | .04 | .06 | .17 |
Note: In step 1 F(3,435) = 4.29**, in step 2 F(4,589) = 4.65** and in step 3 F(9,1147) = 4.87***,
p < .10,
p < .05,
p < .01,
p < .001