Turkish Reliability of the Acceptance and Commitment Therapy-Fidelity Measure

Acceptance and Commitment Therapy (ACT) is a psychotherapy approach with increasing evidencebased therapies' literature support.Research on ACT practices and the effectiveness of ACT interventions is increasing in the Trkiye and Turkish-speaking communities.Evaluating whether psychotherapy practitioners adhere to the theoretical model is important for effectiveness studies.The ACT-Fidelity Measure (ACT-FM) is a scale developed for this purpose.This research aims to develop the Turkish adaptation of the ACT-FM and assess its reliability.ACT therapists were presented with a role-playing video and were then asked to evaluate the therapist's adherence to ACT using a scale.Statistical data analysis was performed using the intraclass correlation coefficient to assess interrater reliability.The results demonstrate that the ACT-FM is a usable measurement tool in the Turkish context.