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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Reliability of quantitative magnetic resonance imaging methods in the assessment of spinal canal stenosis and cord compression in cervical myelopathy.
Alina Karpova,Ranganathan Arun,Aileen M. Davis,Abhaya V. Kulkarni,David J. Mikulis,Chua Sooyong,Doron Rabin,Sorin Craciunas,Sean R. Smith,Mitchell A. Hansen,Joshi George,Michael G. Fehlings +11 more
TL;DR: The results show that the measurements of MCC, MSCC, and CR are sufficiently reliable and correlate well with clinical severity of cervical myelopathy.
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Determining the validity and reliability of the Chinese version of the Kidney Disease Quality of Life Questionnaire (KDQOL-36™).
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Journal ArticleDOI
Reliability of the universal goniometer for assessing active cervical range of motion in asymptomatic healthy persons.
TL;DR: UG is a reliable tool for assessing ACROM in a clinical setting for healthy subjects and demonstrates excellent within-session and between-session reliability and intra-rater reliability.
Journal ArticleDOI
Development and reliability testing of a self-report instrument to measure the office layout as a correlate of occupational sitting
TL;DR: All scales have good measurement properties indicating the instrument may be a useful alternative to Space Syntax to examine environmental correlates of occupational sitting in population surveys.
Journal ArticleDOI
Importance of Syndesmotic Reduction on Clinical Outcome After Syndesmosis Injuries.
Mette Renate Andersen,Mette Renate Andersen,Lien M Diep,Frede Frihagen,Johan C. Hellund,Jan Erik Madsen,Jan Erik Madsen,Wender Figved +7 more
TL;DR: The anterior tibiofibular distance (aTFD) correlated with clinical outcome and a 2 mm difference in aTFD seems to predict poorer clinical outcome.