. Author manuscript; available in PMC: 2014 Dec 1.

Published in final edited form as: Psychol Addict Behav. 2012 Dec 31;27(4):934–943. doi: 10.1037/a0031194

Table 4.

Daily diary composites as predictors of changes in drinking from baseline to week 8


	Week 8 Drinking

	SSD (N = 69)			DDD (N = 69)			NDD (N = 70)
STEP 1	beta	p	R²	beta	p	R²	beta	p	R²

BL Confidence mean^a	−0.395	.002	.220	−0.462	.000	.213	−0.099	.382	.211
BL Commitment no heavy mean^a	−0.442	.000	.256	−0.480	.000	.233	−0.144	.208	.221
BL Commitment none mean^a	−0.304	.009	.183	−0.369	.002	.141	−0.358	.003	.301

STEP 2	beta	p	R² Change	beta	P	R² Change	beta	P	R² Change

Wk 8 Confidence mean^b	−0.276	.040	.049	−0.317	.020	.063	−0.177	.203	.019
Wk 8 Commitment no heavy mean^b,^c	−0.252	.057	.041	−0.272	.043	.047	−0.235	.080	.036
Wk 8 Commitment none mean^b,^c	−0.238	.044	.050	−0.332	.007	.092	−0.371	.000	.118

Note. Week 8 drinking aggregate variables are based on the week prior to the last session of treatment. SD = mean weekly sum of standard drinks; DDD = mean weekly drinks per drinking day; NDD = mean weekly number of drinking days. Baseline drinking refers to the corresponding baseline drinking variable (e.g., BL SSD for SSD at Week 8).

Baseline drinking was significant in this model (SSD and commitment to no drinking only; NDD for all composite variables).

Baseline drinking remained significant in step 2. (SSD and commitment to no drinking only; NDD for confidence and commitment to no heavy drinking).

Baseline composite value remained significant. (DDD and commitment to no heavy or no drinking; NDD and commitment to no drinking.)