Table 3.

Hierarchical regression models predicting binge drinking frequency at baseline (cross-sectional model) and 1-month follow-up (prospective model).

	Variable	Cross-sectional Model DV: BL binge frequency			Prospective Model DV: 1mo binge frequency
		β	p	Adj. R2	β	p	Adj. R2
Step 1	Gender	−0.15	0.001	0.02	−0.13	< 0.001	0.37
	Intervention group	–	–	–	−0.05	0.17	–
	Binge frequency	–	–	–	0.57	< 0.001	–
Step 2	Gender	−0.11	0.01	0.22	−0.12	< 0.001	0.38
	Intervention group	–	–	–	−0.04	0.19	–
	Binge frequency	–	–	–	0.52	< 0.001	–
	Descriptive norms	0.34	< 0.001	–	0.12	0.01	–
	Injunctive norms	0.15	0.001	–	0.01	0.74	–
Step 3	Gender	−0.11	0.001	0.30	−0.12	0.001	0.38
	Intervention group	–	–	–	−0.02	0.63	–
	Binge frequency	–	–	–	0.43	< 0.001	–
	Descriptive norms	0.33	< 0.001	–	0.13	0.01	–
	Injunctive norms	0.05	0.28	–	0.02	0.70	–
	Attitude moderate	−0.33	< 0.001	–	−0.18	< 0.001	–
Step 4	Gender	−0.07	0.07	0.38	−0.11	0.01	0.41
	Intervention group	–	–	–	−0.02	0.56	–
	Binge frequency	–	–	–	0.36	< 0.001	–
	Descriptive norms	0.26	< 0.001	–	0.11	0.02	–
	Injunctive norms	0.03	0.48	–	−0.002	0.97	–
	Attitude moderate	−0.21	< 0.001	–	−0.13	0.003	–
	Attitude heavy	0.32	< 0.001	–	0.20	< 0.001	–

Note. 1mo = 1 month. Attitude heavy = attitude toward heavy drinking. Attitude moderate = attitude toward moderate drinking. BL = baseline. Gender was coded men = 0 and women = 1.