Journal ArticleDOI
Statistical Methods For Assessing Measurement Error (Reliability) in Variables Relevant to Sports Medicine
Greg Atkinson,Alan M. Nevill +1 more
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TLDR
It is recommended that sports clinicians and researchers should cite and interpret a number of statistical methods for assessing reliability and encourage the inclusion of the LOA method, especially the exploration of heteroscedasticity that is inherent in this analysis.Abstract:
Minimal measurement error (reliability) during the collection of interval- and ratio-type data is critically important to sports medicine research. The main components of measurement error are systematic bias (e.g. general learning or fatigue effects on the tests) and random error due to biological or mechanical variation. Both error components should be meaningfully quantified for the sports physician to relate the described error to judgements regarding ‘analytical goals’ (the requirements of the measurement tool for effective practical use) rather than the statistical significance of any reliability indicators.read more
Citations
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Validity and reliability of the Kinovea program in obtaining angles and distances using coordinates in 4 perspectives
Albert Puig-Diví,Carles Escalona-Marfil,Josep Maria Padullés-Riu,Albert Busquets,Xavier Padullés-Chando,Daniel Marcos-Ruiz +5 more
TL;DR: The results indicate that the Kinovea software is a valid and reliable tool that is able to measure accurately at distances up to 5 m from the object and at an angle range of 90°–45°.
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Concurrent validity of a trunk tri-axial accelerometer system for gait analysis in older adults.
TL;DR: The results of this study demonstrate that the DynaPort system, which allows measurements in real life conditions, is a highly valid tool for assessment of spatio-temporal gait parameters for averaged step data across a walkway length of approximately 20m in independent living elderly.
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Knee injury and Osteoarthritis Outcome Score (KOOS); reliability and validity in competitive athletes after anterior cruciate ligament reconstruction.
TL;DR: This study illustrates the validity and reliability of the KOOS in measuring the functional status and quality of life of athletes after ACL reconstruction and further validates the use of theKOOS in highly competitive athletes in research on knee injuries.
Journal ArticleDOI
State anxiety and motor performance: Testing the conscious processing hypothesis
Richard Mullen,Lew Hardy +1 more
TL;DR: For task performance, evidence was found that partially supported the conscious processing hypothesis, while the results of the kinematic analysis of the putting stroke were equivocal, and analysis of self-reported effort scores provided partial support for processing efficiency theory.
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Reliability, factorial validity, and interrelationships of five commonly used change of direction speed tests
TL;DR: All tests are highly reliable and valid measures of CODS, with all tests assessing a general athletic ability to change direction, and future research should investigate the factorial validity of the C ODS test within homogenous samples.
References
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Journal ArticleDOI
Statistical methods for assessing agreement between two methods of clinical measurement.
TL;DR: An alternative approach, based on graphical techniques and simple calculations, is described, together with the relation between this analysis and the assessment of repeatability.
Book
Practical statistics for medical research
TL;DR: Practical Statistics for Medical Research is a problem-based text for medical researchers, medical students, and others in the medical arena who need to use statistics but have no specialized mathematics background.
Journal ArticleDOI
Statistical methods for assessing agreement between two methods of clinical measurement
TL;DR: In this article, an alternative approach, based on graphical techniques and simple calculations, is described, together with the relation between this analysis and the assessment of repeatability, which is often used in clinical comparison of a new measurement technique with an established one.
Journal ArticleDOI
A concordance correlation coefficient to evaluate reproducibility.
TL;DR: A new reproducibility index is developed and studied that is simple to use and possesses desirable properties and the statistical properties of this estimate can be satisfactorily evaluated using an inverse hyperbolic tangent transformation.