Comparing the Effectiveness of two Therapeutic Methods of Dialectical Behavior Therapy and Cognitive Behavior Therapy on the Improvement of Impulsive Behavior in the Patients Suffering from Major Depressive Disorder (MDD) Showing a Tendency to Suicide

The aim of this study is to determine the effectiveness rate of two methods of dialecticalbehavior therapy and cognitive behavior therapy on the impro-vement of impulsive behavior symptoms of patients suffering from major depressive disorder showing a tendency to suicide. This is a semi experimental study with two experimental groups (dialectical behavior therapy and cognitive behavioral therapy) and a control group. The population included all patients with major depressive disorder with impulsive behaviors association with tho-ughtsof suicide who referred to psyc-hological service center of Hamedan in the spring of 2013. The study sample included 21patients withmajor depressive disorder and suicidal thoughts that had the entry criteria. The instruments included a constructed cognitive interview based on DSM, 2000; Bartlett Impulsive Test, 1994 & Beck suicide Tendency 1999 and the aim was to instruct dialectical behavior therapy and cognitive behavior therapy. Findings showed that dialectical behavior therapy was more effective than cognitive behavior therapy in patients suffering from basic (major) depression showing a tendency to suicide. Discussion & In domain ther-apy and dealing with the depressed patients, the dialectical behavior therapy seems so efficacious and encouraging for those who are in critical situation and have a tendency to suicide.