Inferences on the within-subject coefficient of variation

The within‐subject coefficient of variation (WCV) is widely used as a measure of precision and reproducibility of data in medical and biological science. In this paper, generalized confidence intervals and tests for a single WCV is developed using the concept of generalized pivots under the assumpti...

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Bibliographic Details
Published inStatistics in medicine Vol. 25; no. 12; pp. 2008 - 2017
Main Author Tian, Lili
Format Journal Article
LanguageEnglish
Published Chichester, UK John Wiley & Sons, Ltd 30.06.2006
Wiley Subscription Services, Inc
Subjects
Analysis of Variance
Confidence Intervals
generalized confidence intervals
generalized P-values
generalized pivots
generalized test variables
Humans
Medical statistics
Models, Statistical
Probability
Sample Size
Statistical inference
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Summary:The within‐subject coefficient of variation (WCV) is widely used as a measure of precision and reproducibility of data in medical and biological science. In this paper, generalized confidence intervals and tests for a single WCV is developed using the concept of generalized pivots under the assumption of one‐way random effect model. This approach is further extended to two‐sample cases. The resulting procedures are easy to compute and have good properties in term of coverage probabilities and type‐I error control at small sample sizes. The proposed methods are illustrated by a real life example. Copyright © 2005 John Wiley & Sons, Ltd.
Bibliography:istex:A3A0B23E2BEB94259949176E51D86D37729205CA
ArticleID:SIM2330
ark:/67375/WNG-9N89X4L8-P
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ISSN:0277-6715
1097-0258
DOI:10.1002/sim.2330