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Many biomedical variables are subject to large short-term fluctuations; so, measurements of the variable requires statistical improvement. Such variables also commonly exhibit longitudinal correlation due to systematic variations contributed by underlying biological mechanisms and sometimes constituting most of the variability. This correlation structure(More)
The effect of serial-correlation structure of biomedical data on the statistical-sampling variability of power estimates is investigated, extending a previous study of mean value estimates. The degrees of freedom content for power DFp in a k-point sample is shown to be dependent on the serial-correlation structure in a generally different way from the DFk,(More)
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