1. Allen, R. S. (2014). Strengths and challenges of client outcomes in substance abuse treatment: The what and why of effective therapy (Unpublished doctoral dissertation). National Louis University, Chicago IL.
2. American Psychiatric Association. (2000). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: American Psychiatric Association. Text Revision.
3. Barrowclough, C., Meier, P., Beardmore, R., & Emsley, R. (2010). Predicting therapeutic alliance in clients with psychosis and substance misuse. Journal of Nervous and Mental Disease, 198(5), 373–377. doi: 10.1097/NMD.0b013e3181da4d4e .
4. Biglan, A., Hood, D., Brozovsky, P., Ochs, L., Ary, D., & Black, C. (1991). Subject attrition in prevention research. In W. Bukoski & K. Leukefeld (Eds.), Drug abuse prevention research: methodological issues. NIDA research monograph 107 (pp. 213–223). National Institute on Drug Abuse: Rockville MD.
5. Brady, K. T., & Randall, C. L. (1999). Gender differences in substance use disorders. Addictive Disorders, 22(2), 1–13.