Send to

Choose Destination
J Subst Abuse Treat. 2014 Feb;46(2):174-82. doi: 10.1016/j.jsat.2013.06.011. Epub 2013 Aug 15.

Predicting substance abuse treatment completion using a new scale based on the theory of planned behavior.

Author information

Alcohol Research Group, 6475 Christie Ave., Suite 400, Emeryville, CA 94608-1010, USA. Electronic address:


We examined whether a 9-item scale based on the theory of planned behavior (TPB) predicted substance abuse treatment completion. Data were collected at a public, outpatient program among clients initiating treatment (N=200). Baseline surveys included measures of treatment-related attitudes, norms, perceived control, and intention; discharge status was collected from program records. As expected, TPB attitude and control components independently predicted intention (model R-squared=.56), and intention was positively associated with treatment completion even including clinical and demographic covariates (model R-squared=.24). TPB components were generally associated with the alternative readiness scales as expected, and the TPB remained predictive at higher levels of coercion. Meanwhile, none of the standard measures of readiness (e.g., the URICA and TREAT) or treatment coercion were positively associated with treatment participation. Results suggest promise for application of the TPB to treatment completion and support use of the intention component as a screener, though some refinements are suggested.


Social desirability; Stage of change; Transtheoretical model; Treatment attendance; Treatment motivation; Treatment retention

[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Elsevier Science Icon for PubMed Central
Loading ...
Support Center