RESUMEN
This is an evaluation of an Alcohol Treatment Unit with a focus on a comparison of Mexican-American and Anglo-American outcomes. Social adjustment on a target cohort of 75 was measured on a standard rating instrument (SAI) 2 years after discharge from the hospital. The overall successfulness of the program was 39%; the validity of the Treatment Difficulty Scale (a composite index of anticipated treatment difficulty) was demonstrated for both ethnic groups and both first and second year outcome results; and the average stability of first year findings of SAI components as compared to second year results was shown to be 79%. Use of a standardized index of pretreatment patient characteristics was recommended to facilitate comparative program evaluation research.