Therapeutic discourse is a special type of organizational discourse which is used by psychotherapists when treating their patients. The present study uses the conversation analysis approach to find the principles of turn taking in the therapeutic situation. This study specifically examines the therapeutic discourse of treatment sessions for patients with generalized anxiety disorder (GAD) based on the Cognitive-Behavioral Therapy (CBT) approach. The method used in this research is qualitative. The corpus used in this study included 2520 minutes of conversation in psychotherapy sessions. The participants in this study were 16 people of both sexes. ATLAS ti. computer software has been used to construct and present the verbal pattern. The results of this study show that most of turn taking were related to female clients and psychotherapists. This result is related to the relationship between clients and psychotherapists, women's verbal habits, excessive curiosity, and their challenging personality. The presence of overlap in the speech of female psychotherapists and clients and pause in other conversations have been the most widely used signs of turn taking in this type of conversation. The present study has faced some limitations. One of the most important limitations of this research was the prevalence of Covid 19 virus. Also, obtaining the consent of some psychologists and clients to record their videos and voices in psychotherapy sessions has been another limitation of this research. Given the importance of communication and linguistic studies in psychotherapy, it is suggested that future research be conducted on the following topics: “Comparison of GAD Patients’ Speech Pattern with Speech Pattern of Other Anxiety Disorders” and “The effect of direct and indirect expression on anxiety in patients with anxiety disorders”.
