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
Single photon emission computerized tomography and conventional computerized tomography (SPECT/CT) for evaluation of patients after anterior cruciate ligament reconstruction: a novel standardized algorithm combining mechanical and metabolic information
Michael T. Hirschmann,Dominic T. Mathis,Faik K. Afifi,Helmut Rasch,Johann Henckel,Felix Amsler,C.R. Wagner,Niklaus F. Friederich,Markus P. Arnold +8 more
TL;DR: The SPECT/CT algorithm presented is highly reliable and clinically feasible and combined with 3D-mechanical information on tunnel placement and attachment areas and the 3D metabolic data will be helpful in evaluating patients with pain after ACL reconstruction.
Journal ArticleDOI
Middle cerebral artery pulsatility index: reliability at different sampling sites
F. Figueras,S. Fernandez,Elisenda Eixarch,Olga Gómez,J. M. Martínez,Bienvenido Puerto,Eduard Gratacós +6 more
TL;DR: To analyze the interobserver reliability of measurement of the middle cerebral artery (MCA) pulsatility index (PI) at two different sampling sites, the average of the two sites was found to be reliable.
Journal ArticleDOI
Intersession reliability of the electromyographic signal during incremental cycle ergometry: quadriceps femoris.
TL;DR: The purposes of this investigation were to determine the reproducibility of the patterns of responses for electromyographic amplitude and mean power frequency during three incremental cycle ergometer tests separated by 48 hours.
Journal ArticleDOI
Eurofit test battery in patients with schizophrenia or schizoaffective disorder: Reliability and clinical correlates
Davy Vancampfort,Michel Probst,Kim Sweers,Katrien Maurissen,J Knapen,J.B. Willems,T. Heip,M. De Hert +7 more
TL;DR: The Eurofit test showed good reproducibility and can be recommended for evaluating physical fitness parameters in patients with schizophrenia or schizoaffective disorder and was related to both physical and mental health parameters.
Journal ArticleDOI
Reliability of routinely collected anthropometric measurements in primary care.
Sarah Carsley,Patricia C. Parkin,Karen Tu,Karen Tu,Eleanor Pullenayegum,Nav Persaud,Nav Persaud,Jonathon L Maguire,Catherine S Birken +8 more
TL;DR: There was agreement between routine measurements and research measurements although there were some differences in length measurement reliability between practice staff and research assistants, which provides justification for using routinely collected data from selected primary care practices for secondary purposes such as BMI population surveillance and research.