Mchugo, G.J., Drake, R.E., Burton, H.L., and Ackerson, T.H. (1995). A Scale for Assessing the Stage of Substance Abuse Treatment in Persons with Severe Mental Illness. Journal of Nervous and Mental Disease, 183(12).
This article contains the Substance Abuse Treatment Scale (SATS). It presents data for the reliability and validity of the SATS. The SATS can be used "for individuals or for groups.”