Severity of Alcohol Dependence Questionnaire: Validity and Reliability of the Turkish Version

Objective: The aim of the study was to determine the validity and reliability of the Turkish version of Severity of Alcohol Dependence Questionnaire (SADQ) by evaluating people with alcohol use disorder. Method: The present study was conducted with an adult sample of 200 participants with alcohol use disorder according to DSM-5 (Diagnostic and Statistical Manual of Mental Disorders). These volunteers applied to Ege University Institute on Drug Abuse, Toxicology and Pharmaceutical Science. Regarding validity analysis, item-total score correlation coefficients and principal component analysis were calculated. The scale was compared with the Michigan Alcoholism Screening Test (MAST) analysis was performed with an internal consistency reliability and test-retest reliability. Results: Considering the internal consistency reliability of scale, Cronbach's Alpha Reliability Coefficient was found to be a=0.914. The Item and Total Score Correlation Coefficients of the scale items were found between 0.309 and 0.730 (p < 0.01). The mean test-retest scores of the scale and its sub-dimensions were calculated with t-test for dependent groups. The difference was not statistically significant. The Test-retest correlation coefficient of the scale was found to be 0.855 (p < 0.01). Exploratory factor analysis explained 70.5% of the total variance and four sub-dimensions were identified. Factor loadings of these sub-dimensions were estimated between 0.49-0.91. The correlation between SADQ and MAST was statistically significant (r = 0.557, p < 0.01). Conclusion: The results of this study suggest that the Turkish version of the SADQ with four sub-dimensions is a reliable and valid instrument for determining alcohol severity dependence.