Lachar D, Berman W, Grisell J L, Schooff K
J Stud Alcohol. 1976 Nov;37(11):1609-15. doi: 10.15288/jsa.1976.37.1609.
On the MacAndrew Alcoholism Scale alcoholics, heroin addicts and polydrug users obtained similar scores which were significantly higher than those of matched control groups of psychiatric patients.