The Depression Anxiety Stress Scale (DASS) is a self-report measure of anxiety, depression and stress developed by Lovibond 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 that physical anxiety and mental stress factor-out as two distinct domains. This screening and outcome measure reflects the past 7 days (Antony, Bieling, Cox, Enn, & Swinson, 1998).DASS has a 42-items form and a short form that includes 21-items. According to Brown et al. (1997) the subscales of the DASS-21 may measure the three dimensions specified in the tripartite model; low PA (DASS-Depression), physiological hyperarousal (DASS-Anxiety), and NA (DASS-Stress). The model posits a general distress or negative effect factor that is shared by both anxiety and depression, a physiological hyperarousal factor that is relatively unique to anxiety, and an anhedonia or low positive affect factor that 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, 2005; Antony et al., 1998; Brown et al., 1997).