Differences between alcoholics who complete or withdraw from treatment.

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Abstract
Alcoholics, 31 men in each group, who completed an inpatient alcoholism treatment program or withdrew prematurely were compared on the Minnesota Multiphasic Personality Inventory (MMPI), the Marlowe-Crowne Social Desirability Scale (MC-SD), Rotter''s Internal-External Locus of Control Scale (I-E) and a measure of favorable attitudes toward drinking (FA). Significant differences between completers and dropouts were found on only 3 measures. Completers had a mean MMPI Lie Scale score (in t-score units) of 49.65, and the dropouts, 45.10 (P < .05); the completers represented themselves in a somewhat more socially desirable way than did the dropouts. The completers had a significantly higher mean MC-SD score than the dropouts, indicating a greater need for approval among the patients who remained in treatment. The completers'' mean FA score was significantly lower than that of the dropouts, suggesting that the former were more highly motivated to remain abstinent and completed treatment whereas the dropouts viewed their drinking in more rewarding terms and terminated treatment prematurely. Multiple regression analysis of these variables accurately classified 67% of the patients (P < 0.01). Using any 2 of the 3 variables in a discriminant-function analysis raised the accuracy of prediction to 73%.

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