Zung B J, Ross M
J Clin Psychol. 1980 Jul;36(3):806-12. doi: 10.1002/1097-4679(198007)36:3<806::aid-jclp2270360339>3.0.co;2-z.
Investigated a factor analysis of the responses of acutely disturbed psychiatric inpatients (N = 182) to the Michigan Alcoholism Screening Test. Control for differential item difficulty and use of an oblique factor rotation after principal-axis extraction served to highlight the first of four factors as accounting for the preponderance of individual differences in test outcome.