Journal ArticleDOI
Statistical Methods For Assessing Measurement Error (Reliability) in Variables Relevant to Sports Medicine
Greg Atkinson,Alan M. Nevill +1 more
Reads0
Chats0
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
More filters
Journal ArticleDOI
Measures of reliability in sports medicine and science.
TL;DR: A wider understanding of reliability and adoption of the typical error as the standard measure of reliability would improve the assessment of tests and equipment in the authors' disciplines.
Journal ArticleDOI
Quantifying test-retest reliability using the intraclass correlation coefficient and the SEM.
TL;DR: In this review, the basics of classic reliability theory are addressed in the context of choosing and interpreting an ICC and how the SEM and its variants can be used to construct confidence intervals for individual scores and to determine the minimal difference needed to be exhibited for one to be confident that a true change in performance of an individual has occurred.
Journal ArticleDOI
Match performance of high-standard soccer players with special reference to development of fatigue
TL;DR: Top-class soccer players performed more high-intensity running during a game and were better at the Yo-Yo test than moderate professional players; fatigue occurred towards the end of matches as well as temporarily during the game, independently of competitive standard and of team position; defenders covered a shorter distance in high- intensity running than players in other playing positions.
Journal ArticleDOI
The International Physical Activity Questionnaire (IPAQ): a study of concurrent and construct validity.
TL;DR: The long, self-administered IPAQ questionnaire has acceptable validity when assessing levels and patterns of PA in healthy adults and might introduce a source of error in criterion validation studies.
Journal ArticleDOI
An Introduction to Medical Statistics
TL;DR: It is scarcely an exaggeration to say that the recently issued preliminary report on the census of 1931 is one of the most sensational documents which has appeared for years, and that he who reads it intelligently will understand what is meant by saying that civilisation is in the melting pot.
References
More filters
Journal ArticleDOI
Day to day variation in time trial cycling performance: 619
TL;DR: The data suggest that trained cyclists have the ability to reproduce endurance performance with a CV of approximately 1.0% in a time-trial protocol.
Journal ArticleDOI
The effect of trial size and variability on statistical power.
TL;DR: These results provide additional insight into the interactive effects and importance of the factors investigated, especially in the area of SS experiments, as well as the effects of sample size, mean differences, and subject variability on statistical power.
Journal ArticleDOI
Effect on measurement error on tests of statistical significance.
TL;DR: In this article, the effects of measurement error on statistical tests for the difference between an obtained mean and a hypothesized mean, and between two means, are demonstrated using the domain-sampling model from classical test theory.
Journal Article
Measurement variation in method comparison studies: An empirical examination
TL;DR: The findings indicate that the limits of agreement technique, based on plotting difference scores against mean values, provided the most accurate estimation of measurement error.
Journal ArticleDOI
A comparison of skinfold thickness, body mass index, bioelectrical impedance analysis and dual-energy X-ray absorptiometry in assessing body composition in obese subjects before and after weight loss.
TL;DR: This study compares the estimates provided of fat free mass in 21 obese subjects using body mass index and skinfold thickness, with those obtained using the more recently developed techniques of bioelectrical impedance analysis and dual-energy X-ray absorptiometry.