Table 3.

Parameter estimates from Study 2 mediation model (N=603).

Criterion	Predictor	B	SE (B)	Z	p	β	β L95%	β H95%
T2 Problems (M)	T1 Blackouts (X)	1.029	0.228	4.51	<0.001	0.181	0.102	0.259
	T1 Problems	0.383	0.046	8.38	<0.001	0.356	0.273	0.439
	T1 Depression	0.065	0.017	3.94	<0.001	0.139	0.070	0.207
	T1 Drinks per week	0.092	0.026	3.54	<0.001	0.151	0.067	0.235
	Sex	0.114	0.303	0.38	0.707	0.013	−0.054	0.080
	Intervention (MI)	−1.388	0.358	−3.87	<0.001	−0.148	−0.223	−0.073
	Intervention (PNF)	−0.415	0.361	−1.15	0.250	−0.045	−0.120	0.031
	Site	−0.024	0.303	−0.08	0.938	−0.003	−0.070	0.065
	Intercept	0.431	0.424	1.02	0.309	0.000	−0.065	0.065
T3 Depression (Y)	T2 Problems (M)	0.241	0.103	2.35	0.019	0.106	0.018	0.194
	T1 Blackouts (X)	−0.686	0.554	−1.24	0.216	−0.053	−0.137	0.031
	T1 Problems	0.304	0.113	2.68	0.007	0.124	0.033	0.215
	T1 Depression	0.551	0.040	13.82	<0.001	0.513	0.440	0.585
	T1 Drinks per week	−0.029	0.060	−0.48	0.634	−0.021	−0.105	0.064
	Sex	−0.122	0.713	−0.17	0.864	−0.006	−0.076	0.063
	MI intervention	−0.192	0.858	−0.22	0.823	−0.009	−0.088	0.070
	PNF intervention	1.231	0.853	1.44	0.149	0.058	−0.021	0.137
	Site	−1.162	0.712	−1.63	0.103	−0.058	−0.127	0.012
	Intercept	5.350	1.010	5.30	<0.001	0.000	−0.067	0.067

Note. T1 = baseline. T2 = 3 months. T3 = 6 months. M = mediator. MI = Motivational Interviewing. PNF = personalized normative feedback. X = independent variable.