Journal ArticleDOI
Sample size and optimal designs for reliability studies
TLDR
A functional approximation to earlier exact results is shown to have excellent agreement with the exact results and one can use it easily without intensive numerical computation.Abstract:
A method is developed to calculate the required number of subjects k in a reliability study, where reliability is measured using the intraclass correlation rho. The method is based on a functional approximation to earlier exact results. The approximation is shown to have excellent agreement with the exact results and one can use it easily without intensive numerical computation. Optimal design configurations are also discussed; for reliability values of about 40 per cent or higher, use of two or three observations per subject will minimize the total number of observations required.read more
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Journal ArticleDOI
Testing a tool for the classification of study designs in systematic reviews of interventions and exposures showed moderate reliability and low accuracy
TL;DR: The moderate reliability and low accuracy may be because of lack of clarity and comprehensiveness of the tool, inadequate reporting of the studies, and variability in tester characteristics.
Journal ArticleDOI
Feasibility and reliability of physical fitness tests in older adults with intellectual disability: A pilot study
TL;DR: All tests to measure physical fitness in older adults with ID had moderate to excellent feasibility and had sufficient test–retest reliability, and no statistically significant learning effects were found.
Journal ArticleDOI
Interobserver reliability in the endoscopic diagnosis and grading of Barrett's esophagus: An Asian multinational study
Yi-Chia Lee,Michael B. Cook,S. Bhatia,W. H. Chow,Emad M. El-Omar,Hidemi Goto,Jr-Jiun Lin,Jr-Jiun Lin,Y. Li,Poong-Lyul Rhee,Prateek Sharma,Joseph J.Y. Sung,Jennieyy Wong,Justin C.Y. Wu,Khek Yu Ho +14 more
TL;DR: The interobserver reliability in the endoscopic diagnosis and grading of Barrett's esophagus was determined and endoscopists exhibited excellent agreement using the Prague C & M Criteria, but future studies in Asia should take this into account when selecting the study population.
Journal ArticleDOI
Psychometric Properties of Timed Up and Go in Elderly People: A Systematic Review
TL;DR: TUG is a valid test but should not be used to discriminate between persons with a high or low fall risk in old age, and future studies should focus on evaluating responsiveness and absolute reliability.
Journal ArticleDOI
Reliability of Kinovea® Software and Agreement with a Three-Dimensional Motion System for Gait Analysis in Healthy Subjects.
P. Fernández-González,A. D. Koutsou,Alicia Cuesta-Gómez,María Carratalá-Tejada,Juan Carlos Miangolarra-Page,Francisco Molina-Rueda +5 more
TL;DR: The Bland–Altman plots showed disagreement between observers, measurements and systems (Kinovea® vs. three-dimensional motion system) that should be considered in the interpretation of clinical evaluations.