An MMPI typology of male alcoholics: admission, discharge and outcome comparisons.

The admission MMPI profiles of approximately half of 337 male alcoholics treated at the Hazelden Foundation (Center City, Minnesota) were classifiable into four groups: neurotic, classic alcoholic, psychopathic, and psychotic. The discharge MMPI profiles of the neurotic, classic, and psychotic types showed foreshortening but maintained their basic configurations. The psychopathic type's discharge MMPI profile showed no major change either in elevation or shape. Several biodemographic and treatment outcome differences were found among the four profile types.