Validity and Reliability of the Turkish Version of the Revised Bath CRPS Body Perception Disturbance Scale

This study aims to perform the cross-cultural adaptation of the Revised Bath Complex Regional Pain Syndrome Body Perception Disturbance Scale (r-B-CRPS-BPDS) into Turkish and to evaluate the validity and reliability of the Turkish version in adults with Complex Regional Pain Syndrome (CRPS). Adult participants diagnosed with CRPS according to the Budapest clinical diagnostic criteria will be included. Participants will complete the Turkish r-B-CRPS-BPDS together with measures of kinesiophobia, health-related quality of life, and pain intensity. CRPS clinical severity will also be assessed. Construct validity, internal consistency, test-retest reliability, measurement error, and floor and ceiling effects of the Turkish r-B-CRPS-BPDS will be evaluated. For test-retest reliability, clinically stable participants will complete the r-B-CRPS-BPDS again after 7-10 days. The study is intended to provide a culturally adapted, valid, and reliable Turkish version of the r-B-CRPS-BPDS for assessing body perception disturbance in individuals with CRPS.