Wilcoxon test

(redirected from Wilcoxon tests)
Also found in: Medical.

Wilcoxon test

(wɪlˈkɒksən)
n
(Statistics)
a. Also called: Wilcoxon matched-pairs signed-ranks test a statistical test for the relative size of the scores of the same or matched subjects under two experimental conditions by comparing the distributions for positive and negative differences of the ranks of their absolute values
b. Wilcoxon Mann-Whitney test See Mann-Whitney test
[named after Frank Wilcoxon (1892–1965), Irish mathematician and statistician]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Mentioned in ?
References in periodicals archive ?
The comparisons of TIL phenotypes were processed by Wilcoxon tests between age, nerve invasion, vascular invasion, and axillary lymph node involvement groups.
Chi-square, independent sample t-test, Mann-Whitney U and Wilcoxon tests were used for the statistical evaluation (p0.05).
We additionally employ a non-parametric approach using Wilcoxon tests. Although t-tests are generally quite robust to violations of the underlying assumptions, the non-parametric approach makes fewer assumptions with respect to normal distribution of the variables.
(2) The Mann-Whitney Wilcoxon tests for differences in independent sample medians by computing a test statistic (U-value) based on the rank of the target variable values across two groups, in our case election and non-election years.
Therefore, this study employed McNemar and Wilcoxon tests for the performance assessment of corner detection algorithms.
Sign and Wilcoxon tests analysis of the mutation-drift equilibrium for expected and observed numbers of loci with Heterozygosity excess in beef bovine breeds from Brazil.
Descriptive P values were calculated using Wilcoxon tests and Fisher's exact tests for quantitative and categorical parameters, respectively.
Through a simulation study, they demonstrated that their modified test had greater power than the commonly used logrank and Wilcoxon tests for detecting differences between crossing survival curves.
Variable m z p Trabecular bone area Tb.Ar [micro][m.sup.2] 10 -.459 .646 Medullary bone diameter Me.Dm [micro][m.sup.2] 10 -.561 .575 Osteoid area 0.Ar [micro][m.sup.2] 10 -.663 .508 Mineralized area Md.Ar [micro][m.sup.2] 10 -.255 .709 Osteoblast area Ob.Ar [micro][m.sup.2] 10 -2.293 .022 P values were -calculated by Wilcoxon tests. n=number of specimens.