Reliability and Validity of the Turkish Version of General Sleep Disturbance Scale (GSDS-T) in Multiple Sclerosis

The aim of this study is to investigate the validity and reliability of the Turkish version of general sleep disturbance scale (GSDS-T) in patients with multiple sclerosis. It has 21 questions. This study will be conducted on patients with multiple sclerosis. In order to evaluate the validity of the GSDS-T, the Pittsburgh Sleep Quality Index (PSQI) which can evaluate sleep quality and has been validated in Turkish, will be used. Scales will be repeated after 15 days to assess test-retest reliability.