Table 3.

Results of hierarchical regression analyses predicting children’s total problems.

Predictors	Outcome: CBCL/6-18_ Total Problems
	Model 1			Model 2
	B	t	p	B	t	p
ASR Internalizing mothers	0.01	0.09	0.92	0.04	0.22	0.82
ASR Externalizing mothers	0.11	0.94	0.34	0.20	1.34	0.18
SCL-90-R GSI mothers	0.30	1.93	0.05	0.21	1.01	0.31
ASR Internalizing fathers	−0.13	−0.64	0.52	−0.25	−1.01	0.31
ASR Externalizing fathers	0.21	1.21	0.23	−0.45	2.02	0.04 *
SCL-90-R GSI fathers	0.11	0.60	0.55	0.08	0.36	0.71
DAT1 genotype a	−0.19	−1.72	0.09	−0.17	−1.53	0.13
DAT1 × Internalizing mothers				−0.05	−0.22	0.82
DAT1 × Externalizing mothers				−0.20	−1.41	0.16
DAT1 × GSI mothers				0.23	1.01	0.31
DAT1 × Internalizing fathers				0.10	0.48	0.62
DAT1 × Externalizing fathers				−0.48	−1.71	0.09
DAT1 × GSI fathers				0.15	0.73	0.46
R2	0.224			0.29

^a contrast group is 9/9, 9/10 DAT1 genotype; * p < 0.05.