Turkish Journal of Psychiatry

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Severity of Alcohol Dependence Questionnaire: Validity and Reliability of the Turkish Version Betül AKYEL, Ebru ALDEMİR, Ayşe Ender ALTINTOPRAK 2018 29(3): 202-208
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Objective: The aim of the study is to determine the validity and reliability
of Turkish version of Severity of Alcohol Dependence Questionnaire
(SADQ) developed by Tim Stockwell and colleagues in 1983 for the
purpose of evaluating the severity of dependence in 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) who 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 Michigan Alcoholism Screening Test (MAST).
Reliability analysis was performed with internal consistency reliability
and test-retest reliability.
Results: Considering the internal consistency reliability of scale,
Cronbach’s Alpha Reliability Coefficient was found to be α=0.914.
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 and the difference was not statistically significant. Testretest
correlation coefficient of the scale was found 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
in determining severity of alcohol dependence.