Table 3.

Summary of hierarchical multiple regression predicting heavy episodic drinking

Variable	First Entry Into Model			Final Model
	B	SE B	β	B	SE B	β
Step one (R2 = .061**)
Family history	0.019	0.027	0.039	0.000	0.022	0.000
Gender (1 = female, 2 = male)	0.436	0.101	0.243**	0.284	0.085	0.159**
Step two (ΔR2 = .311**)
Magnitude of recent stressful life events	0.000	0.000	0.009	0.000	0.000	−0.022
Intensity of best friend’s drinking	0.343	0.052	0.338**	0.287	0.052	0.283**
Sensation seeking	0.113	0.029	0.202**	0.116	0.028	0.207**
Social motives for drinking	0.009	0.067	0.007	0.008	0.065	0.007
Coping motives for drinking	0.025	0.060	0.024	−0.023	0.059	−0.023
Enhancement motives for drinking	0.168	0.054	0.199*	0.130	0.053	0.155
Step three (ΔR2 = .037**)
Impaired control		n/a		0.033	0.008	0.227**

^*P ≤ .01

^**P ≤ .001