JOURNAL OF GASTROINTESTINAL AND LIVER DISEASES, cilt.30, sa.2, ss.193-197, 2021 (SCI-Expanded)
Background & Aims: Achieving the correct diagnosis and therapeutic success in gastroesophageal reflux disease (GERD) depends on the patient's self-assessment. Therefore, valid and reliable patient-reported questionnaires are very important. When designing such measurement tools, researchers should focus on their validity, reliability, sensitivity, and, applicability. The reflux disease questionnaire (RDQ) largely meets these important requirements. This study aims to examine The RDQ's psychometric characteristics for the Turkish society (RDQ TR) and its validity in symptoms' evaluation.