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Abstract Aim and Background: Evidences show that both negative and positive affects play role in tendency to use substances, giving this issue, the current study was conducted in other to investigate relationships between distress tolerance, negative and positive urgency with severity of dependence and craving in people with substance dependency. Methods and Materials: The method of this research was correlation. The whole people with substance dependency were referring to Ardabil centers of addiction treatment, comprised statistical society of this research. One hundred and thirty people were selected by cluster sampling method from this society. Having conducting clinical interview, they responded to questionnaires of demographic characteristics, distress tolerance, negative and positive urgency, severity of dependence and craving. Collected data were analyzed by SPSS 18 with tests of Pearson correlation and multiple regression via inter method. Findings: The results showed that severity of substance dependency related negatively to rate of tolerance (r=-0.33; P≤0.002), absorption(r=-0.26; P≤ 0.01), and total score of distress tolerance (r=-0.25; P≤ 0.02), but positively to negative urgency (r=0.23; P≤ 0.04). Craving also correlated negatively with tolerance(r=-0.35; P≤0.001), appraisal(r=-0.30; P≤0.001), absorption (r=-0.34; P≤0.001), regulation (r=-0.23; P≤0.03), and total score of distress tolerance(r=-0.45; P≤ 0.001), but positively to positive(r=0.26; p≤ 0.03), and negative urgency(r=-0.29; P≤ 0.01). The results of regression analyses also reveled that 31 percent of variance of craving was explained with distress tolerance reversely Conclusions: According to results of this study and importance of craving as a central factor in addiction relapse, training the coping skills with negative affect, especially increasing coping power with distress were suggested for addicted clients along with typical therapies substance abuse and dependency.

Keywords: Distress Tolerance, Positive Urgency, Negative Urgency, Sseverity of Dependancy, Craving, Substance Dependancy &, nbsp

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