Table 2.

Max-Rescaled R² values for alternative models predicting relapse

Model	Predicting Relapse at:
Predictors	1-month	3-month	6-month
Basic Models
Attrition predictors †	0.02	0.01	0.01
Attrition predictors † and single-item self-efficacy score	0.17	0.20	0.23
Incremental Models
Attrition predictors† and other relapse predictors ‡	0.34	0.24	0.19
Attrition predictors †, other relapse predictors ‡, and single-item self-efficacy score	0.41	0.33	0.32
Alternative Models - Using ADSES scores instead of single-item measure    while controlling for attrition predictors † and other relapse predictors ‡
ADSES - Self-efficacy - Total Score	0.36	0.27	0.24
ADSES - Self-efficacy - Negative Affect	0.36	0.27	0.24
ADSES - Self-efficacy - Social / Positive	0.36	0.25	0.24
ADSES - Self-efficacy - Physical & Other	0.35	0.28	0.22
ADSES - Self-efficacy - Craving / Withdrawal	0.36	0.26	0.25

Note:

^†race (White vs. other), education (3 levels);

^‡having spent time in a controlled environment", percent days abstinent prior to treatment, hospitalization due to substance use prior to tx ("ever" versus "never")