Some Results on Estimating a Wilcoxon–Mann–Whitney Measure of Effect Size When There are two Covariates

Rand R. Wilcox ()
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Rand R. Wilcox: University of Southern California

Sankhya B: The Indian Journal of Statistics, 2024, vol. 86, issue 1, No 2, 54 pages

Abstract: Abstract A basic method for characterizing the difference between two independent groups is $$\pi $$ π , the probability that a randomly sampled value from the first group is less than a randomly sampled value from the second group. Recently, a method for making inferences about $$\pi $$ π was proposed that deals with a covariate. A goal here is to report simulation results when there are two covariates. Included is a suggestion for picking the covariate points. The method is illustrated with data dealing with depressive symptoms among older adults.

Keywords: Rank-based methods; effect size; ANCOVA; projection distance; C12; C18; I31 (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s13571-023-00319-3

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