The Turkish version of the Roland Morris Disability Questionnaire will be used to measure disability. The RMDQ, first published in 1983, assesses the disability level of individuals with back pain(23). It consists of 24 items, including physical ability/activity (15 items), sleep/rest (3 items), psychosocial (2 items), home management (2 items), eating (1 item), and pain frequency (1 item). The original 24-item questionnaire has been shortened to 18-item and 23-item versions and adapted for use in other countries . It was adapted into Turkish by Küçükdeveci et al. in 2001. Each positive response corresponds to one point on the scale, addressing daily activities potentially restricted by back pain. Each "Yes" answer scores 1 point, and each "No" answer scores 0 points, with the final score being the sum of these points. The total score ranges from 0 to 24, with higher scores indicating greater disability .