The feasibility, validity and reliability of the Time Trade-Off (TTO) and Visual Analogue Scale (VAS) methods in obtaining preference values for health states were compared in a random sample of the ...

Scientists across all fields make various types of claims about their innovations. Validity tests check whether they deliver ...

PURPOSE: To report the reliability and validity of the Functional Assessment of Cancer Therapy–Ovarian (FACT-O) in a consecutive series of outpatients with epithelial ovarian cancer. PATIENTS AND ...

Purpose The study aimed to evaluate the reliability and validity of the Thai version of the Pediatric Quality of Life Inventory™ 4.0 Core Scales (PedsQL) as a measure of health-related quality of life ...