1. APA [American Psychiatric Association] (1994). Diagnostic and statistical manual of mental disorders, 4th Ed. (DSM-IV). Washington, DC: American Psychiatric Press.
2. & (2001). Modeling the performance of welfare-to-work programs: The effects of program management and services, economic environment, and client characteristics, working paper. New York: MDRC.
3. Patient and program attributes related to treatment process indicators in DATOS