title: Reliability and Validity of the Turkish Version of the Gastrointestinal Symptom Rating Scale.
abstract: The purpose of this methodological study is to investigate the validity and reliability of the Turkish version of the Gastrointestinal Symptom Rating Scale (GSRS). The scale was adapted to the Turkish language via backward translation. Content validity was examined by referring to experts. Reliability was examined via test-retest reliability and internal consistency, and validity was examined with divergent and convergent validity. The Epworth Sleepiness Scale (ESS) and the Marlowe-Crowne Social Desirability Scale (MCSDS) were used for divergent validity. As for convergent validity, the Constipation Severity Instrument (CSI) and the Patient Assessment of Constipation Quality of Life Scale (PAC-QOLQ) were utilized. The relationship between the GSRS and the health-related quality of life (36-item short-form health survey [SF-36]) was also analyzed. The study population consisted of patients in orthopedic clinic who volunteered to participate. Test-retest reliability was examined with the participation of 30 patients; internal consistency and validity were examined with 150 patients. Test-retest reliability correlation coefficients of the GSRS varied from 0.39 to 0.87 for all items. For internal consistency, the GSRS's item total correlation was found to be 0.17-0.67, and Cronbach α was 0.82 for all items. There was a positive linear significant correlation between the GSRS, CSI, and PAC-QOLQ. There was no significant correlation between the GSRS, MCSDS, and ESS. Higher GSRS scores inversely correlated with general quality of life (SF-36). The Turkish version of the GSRS has been found to be a reliable and valid instrument for assessing patients' gastrointestinal symptoms. Therefore, this instrument can be confidently used with Turkish individuals.
authors.affiliation: Nuray Turan, PhD, BSN, is Assistant Professor, Florence Nightingale Faculty of Nursing, Department of Fundamentals of Nursing, Istanbul University, Istanbul, Turkey. Türkinaz Atabek Aştı, PhD, BSN, is Professor, Bezmialem Vakıf University, Faculty of Health Sciences, Department of Nursing, Istanbul, Turkey. Nurten Kaya, PhD, BSN, is Associate Professor, Istanbul University, Health Sciences Faculty, Istanbul, Turkey.
authors.forename: Nuray
authors.initials: N
authors.lastname: Turan
authors.forename: Türkinaz Atabek
authors.initials: TA
authors.lastname: Aşt
authors.forename: Nurten
authors.initials: N
authors.lastname: Kaya
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005767:Gastrointestinal Diseases / Q000175:diagnosis* / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D014177:Translations; D014421:Turkey