Statistical variability of biomedical data: part 2. The influence of serial correlations on power estimates, and on comparative testing of samples.


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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