Table 5.

Temperament x Parental Monitoring Interactions in 9 Grade Predicting Substance Use Intentions in 9 Grade

	b	β	t	R²	ΔR²	df
Step l				.179^*		601
Effortful Control	−.64	−.23	−5.57^*
Parental Monitoring	−.03	−.27	−6.71^*
Step 2				.186^*	.007^*	600
Effortful Control X Parental Monitoring	.03	.08	2.30^*

Step l				.173^*		601
Negative Affectivity	.49	.18	4.90^*
Parental Monitoring	−.04	−.37	−10.05^*
Step 2				.179^*	.006^*	600
Negative Affectivity X Parental Monitoring	−.02	−.08	−2.07^*

Step 1				.234^*		601
Aggression	.75	.30	7.69^*
Parental Monitoring	−.03	−.26	−6.81^*
Step 2				.245^*	.011^*	600
Aggression X	−.03	−.11	−2.99^*
Parental Monitoring

Step l				.185^*		601
Depressive Mood	.55	.22	5.89^*
Parental Monitoring	−.04	−.33	−8.85^*
Step 2				.193^*	.009^*	600
Depressive Mood X Parental Monitoring	−.03	−.09	−2.52^*

Note. All regression coefficients based on full model. Parental Monitoring is child reported. Effortful control, negative affectivity, aggression, depressive mood, and parental monitoring were grand-mean centered prior to analysis. Substance use intentions were log transformed and standardized prior to analysis.

p < .05.