The ability of two scales derived from the Minnesota Multiphasic Personality Inventory (MMPI) to identify emotional maladjustment in a college setting was examined. The scales were the College Maladjustment scale (Mt) developed by Kleinmuntz (1961) and the Health Opinion Survey based Emotional Disorder scale (Ed). Emotional maladjustment was defined by criteria established in the Diagnostic and Statistical Manual of Mental Disorders (3rd ed., rev. [DSM-III-R]; American Psychiatric Association, 1987) and assessed through a computerized Diagnostic Interview Schedule. Subjects were 94 female and 62 male students, 51 of whom (33%) met criteria for at least one DSM-III-R disorder. Substance use disorders were most frequent (13.5%), followed by anxiety disorders (11.5%) and depressive disorders (7.1%). Both Mt and Ed had no relationship to substance use disorders but were moderately related to nonsubstance use maladjustment (r approximately .47); receiver operating characteristic (ROC) analysis was employed, and Mt and Ed proved to be a fair-to-good indicator of nonsubstance use maladjustment. Types of decision errors are discussed, and tables provide information concerning predictive accuracy across the entire range of scores.
This study assessed the validity of three Minnesota Multiphasic Personality Inventory-2-based (MMPI-2; Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 1989) substance abuse scales. The scales were the MacAndrew Alcoholism Scale-Revised (MAC-R; Butcher et al., 1989) and the recently developed Addiction Acknowledgment Scale and Addiction Potential Scale (AAS & APS; Weed, Butcher, McKenna, & Ben-Porath, 1992). Study participants were 308 male and female college students who completed the MMPI-2 and the substance use disorder modules of the Diagnostic Interview Schedule. The MAC-R and the APS had a nonsignificant-to-weak relationship with substance dependence as defined by the Diagnostic and Statistical Manual of Mental Disorders (3rd ed., rev. [DSM-III-R]; American Psychiatric Association, 1980). The AAS had a moderate ability to identify the 33 study participants who met DSM-III-R criteria for a substance use disorder, primarily alcoholism. Broadening the definition of substance abuse to a continuum of alcohol/drug problems did not alter the character of findings. These results highlight the relative superiority of direct (AAS) versus subtle (APS, MAC-R) scales to detect substance dependence and support studies that question the overall utility of traditional MMPI scales to identify substance abuse.
Forty-five alcoholics in treatment (29 males and 16 females) who reported substantial alcohol dependence but scored in the nonalcoholic range on the MacAndrew Alcoholism Scale (MAC) were matched with 45 alcoholics who reported a similar degree of alcohol dependence and obtained alcoholic-range scores on the MAC. Results reveal that high MAC alcoholics were characterized by gregariousness, social drinking, belligerence and aggression while drinking, and a high degree of alcohol-related legal problems. Low MAC alcoholics appeared to be a different or less distinctive type of alcoholic; although they were less outgoing and preferred not to drink with others, they experienced a wide range of serious alcohol-related consequences. Low MAC alcoholics were not more likely to have a history of nonsubstance use psychiatric diagnosis and treatment. Cloninger, Bohman, and Sigvardsson's (1981) alcoholic typology was related to MAC scores: There was a greater likelihood that high-MAC alcoholics were Type II and low MAC alcoholics Type I.
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