IRCT20210428051113N2 IRCT 2023-03-16 Zanjan University of Medical Sciences Efficacy of Transdiagnostic therapy in Adolescents with sub-clinical symptoms of body dismorphic disorder Efficacy of Transdiagnostic therapy on psychological variables and reduce symptoms in Adolescents with sub-clinical symptoms of body dismorphic disorder 2023-04-21 anticipated 62 Complete https://irct.ir/trial/68460 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: In order to have an equal number of participants in the intervention and control groups at consecutive but equal time intervals, two blocks will be considered and the samples will be placed in the two intervention groups and the waiting list based on the assignment of random blocks, Blinding description: Blinding will be done in connection with the therapist regarding the allocation of people in the treatment groups and waiting list, as well as evaluation and evaluation information of three stages. N/A body dysmorphic disorder. Intervention 1: Intervention group: receive integrated metadiagnostic treatment. This treatment has 8 modalities and is performed in 8-12 sessions. The duration of each session is 45 minutes. The content of therapeutic modalities includes emotional awareness, cognitive restructuring, exposure to physical symptoms, exposure and inhibition of response, and parental modality, which focuses on teaching maladaptive educational behaviors and their alternatives. And protocol training forms and worksheets are also given to clients at the end of the sessions. Intervention 2: Control group: A waiting list group that does not receive extradiagnostic treatment. No - There is not a plan to make this available Justification or reason for not sharing IPD is To maintain the confidentiality of client information