Table 2.

Hierarchical regression models predicting drinks per week from descriptive norms for friends, communication variables, and their interactions.

	Predictors	Drinks per week
		β	B	p	ΔR2
Step 1					.45
	Gender	0.00	0.06	.94
	Descriptive norms	0.67	0.60	<.001
Step 2					.04
	Gender	0.01	0.09	.92
	Descriptive norms	0.58	0.52	<.001
	General drinking communication	0.23	0.82	<.001
	Drinking safety communication	−0.05	−0.67	.21
Step 3					.01
	Gender	−0.02	−0.37	.68
	Descriptive norms	0.54	0.49	<.001
	General drinking communication	0.23	0.84	<.001
	Drinking safety communication	−0.04	−0.54	.32
	General drinking x Descriptive norms	0.06	0.02	.16
	Drinking safety x Descriptive norms	−0.10	−0.14	.01