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 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.
Tian
Lili
L
Division of Biostatistics, Department of Statistics, University of Florida, Gainesville, FL 32610, USA. ltian@biostat.ufl.edu
D000704:Analysis of Variance; D016001:Confidence Intervals; D006801:Humans; D015233:Models, Statistical; D018401:Sample Size