IRCT20141108019855N5 IRCT 2018-08-24 Center for Student Research and Technology Committees Acceptance and commitment therapy for adolescent with obsessive - compulsive disorder Comparison of the efficacy of acceptance and commitment therapy in reducing anxiety and obsessive-compulsive symptoms in people with obsessive-compulsive disorder with control group 2018-09-23 anticipated 30 Complete https://irct.ir/trial/17647 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The present study will include 12 to 17 year-old adolescents who are referred to the clinic of the Tehran Psychiatric Institute (Faculty of Behavioral Sciences and Mental Health) and have received OCD. Once diagnosed by the psychiatrist, to confirm the diagnosis, the K-SADS test will be run by a trained and experienced psychologist.The final sample will consist of 30 participants who will be randomly assigned in either control or experiment groups. To this purpose , the names of all participants will be written and placed in a container. And the other container will contain 30 sheets, on 15 of which will be written control and 15 other experiment. Then two sheets will be drawn from each container.Finally, the name of the individual and the selected group will be written in a list. This work is repeated so that everyone were placed in the control and experiment groups. N/A Obsessive-compulsive disorder. Intervention 1: Intervention group:Acceptance and Commitment Therapy is based on the Armstrong and Twohig Model (2011) will be perform. This intervention is administered in eight weekly sessions lasting one hour . Intervention 2: Control group: waiting list. No - There is not a plan to make this available Justification or reason for not sharing IPD is Because if the original data is released, the principle of privacy will be violated.