Factorial structure, reliability and validity of the Turkish version of the drinking motives questionnaire-revised in male alcohol dependent inpatients

Abstract

Objective: Drinking Motives Questionnaire (DMQ-R) is a 20-item questionnaire that assesses four categories of drinking motives (social, coping, enhancement, and conformity). In the aim of this study, the reliability and validity and factorial structure of the Turkish translation of the DMQ-R in male alcohol dependent inpatients were determined. Method: The study was conducted with hospitalized patients between August 2008 and March 2009 in Bakirkoy State Hospital for Mental Health and Neurological Disorders, AMATEM (Alcohol and Drug Research, Treatment and Education Center) in Istanbul. Participants were 155 consecutively admitted male alcohol dependents. Patients were investigated with the DMQ-R, the Obsessive?Compulsive Drinking Scale (OCDS) and the Michigan Alcohol Screening Test (MAST). The internal consistency of the Turkish version of DMQ-R was evaluated by the Cronbach?s Alpha test, and for validity investigation the OCDS and the MAST was used. Results: The Turkish version of the scale with 20 item questionnaire was found to be compatible with the original scale. In alcohol dependents, the internal consistency coefficient (Cronbach?s alpha) was 0.794 for ?Conformity? scale, 0.849 for ?Social? scale, 0.843 for ?Coping? and 0.789 for ?Enhancement?. For each of the items, the corrected item-total correlation values were between 0.652 and 0.848 (p<0.001). Test?retest correlations were 0.602 for ?Conformity? scale, 0.549 for ?Social? scale, 0.657 for ?Coping? and 0.637 for ?Enhancement?. Four subscales of the DMQ-R, total score of the OCDS and the MAST were correlated significantly in the degree of p<0.001, other than ?social? motives, which was correlated significantly in the degree of p<0.01. Conclusions: Results which were obtained in this study suggests that the Turkish version of the DMQ-R was reliable and valid for alcohol dependent inpatients.