بررسي اعتبار و روايي فرم كوتاه مقياس افسردگي‌، اضطراب و فشار رواني‌

A Study Oil the Reliability and Validity of the Short Form of the Depression Anxiety Stress Scale (DASS-21)

The Depression Anxiety Stress Scale (DASS) is ~ sclf-report mcusure "Iʹ anxiety, depression and stress developed by Loviboud and Lovibond (1995 ) which is used in diverse settings. Lovibond and Lovibond try to discriminate between the constructs depression and anxiety by the scale. This scale proposes thal physical anxiety and mental stress factor-out as two distinct domains. This screening and outcome measure reflects the past 7 days (Antony. Biding. Cox. Enn, & Swinson, 1998). DASS h,,, a 4:2-Jlems form ano a short form that includes -ʹ-I-Items. According 10 Brown et al, (1997) the subscales of the DASS-21 may measure the three dimensions specified in the tripartite model; low PA lDASS-Depression). physiologicaʹ hyperarousal (DASS-Anxiety), and NA (DASS-Stress). The model posits a general distress or negative effect factor that is shared hy both anxiety and depression. a physiological hyperarousat factor that is relatively unique to anxiety, and an anhedonia or low positive affect factor thai is relatively unique to depression. In short form of the depression anxiety stress scale. each factor (depression. anxiety and stress) is measured by 7 items. Different researchers in their studies have reported an acceptable reliability and validity for the measure (Henry and Crawford. ":ʹ(105; Antony et ʹII., 199X; Brown ct al.. 1997). The main aim of the present study was to check the factor structure of the short form of the DASS. 12 Methods The participants consisted of 637 college students in Shiraz University and Shiraz Mcdical University (330 females and 308 males). The mean age of the sample was 21.9 (SD= 3.6) with a range of 18-27. The short form of DASS (Zl-items), General Health Questionnaire (GHQ) and Middlesex Hospital Questionnaire (MHQ) were used in this study. The English-language version of the DASS-2! was translated into Persian and then the Persian form was hack-translated into English language. The General Health Questionnaire and Middlesex Hospital Questionnaire were used to study the convergent and divergent validity of the short form of the DASS. Results In the present study. we used exploratory factor analysis