Mann-Whitney Test Quick reference
A Dictionary of Epidemiology (6 ed.)
...Mann-Whitney Test A test that compares two groups of ordinal scores, showing the probability that they form parts of the same distribution. It is a nonparametric equivalent of the t -test. ...
Mann–Whitney test Quick reference
A Dictionary of Dentistry (2 ed.)
...Mann–Whitney test ( Wilkoxson rank-sum test , Wilcoxon-Mann-Whitney test ) A nonparametric test used in statistics to examine the differences between two independent samples . The null hypothesis posed is that it is equally likely that a randomly selected value from one sample will be less than or greater than a randomly selected value from a second sample. It was initially developed by F. Wilcoxon in 1945 and extended by Mann and Whitney in 1947...
Mann–Whitney test Quick reference
A Dictionary of Statistics (3 ed.)
...–Whitney test A two-sample non-parametric test , equivalent to the Wilcoxon rank-sum test , introduced in 1947 by Mann and Whitney . It is assumed that the samples are random and come from populations ( random variables X and Y ) that have the same distribution after a translation of size k : The null hypothesis is that the random variables have the same distribution (i.e. k =0). See also test for equality of location . With samples of sizes m and n ( m ≤ n ), the first stage is the replacement of the ( m + n ) observed values by...
Mann–Whitney U test Quick reference
A Dictionary of Business Research Methods
...–Whitney U test ( Wilcoxon–Mann–Whitney ) Inferential test to establish whether two independent samples of observations are drawn from the same population . Non-parametric equivalent of t-test , used when the dependent variable is measured on an ordinal scale and/or the distributions do not fit that of the normal distribution . See also parametric tests , algebraic...
Mann–Whitney U test n. Quick reference
A Dictionary of Psychology (4 ed.)
...–Whitney U test n. In statistics, a widely used distribution-free test , more powerful than the median test , of the null hypothesis that two independent samples come from the same population. The distribution-dependent alternative is the independent samples t test . [Named after the Austrian-born US mathematician Henry Berthold Mann ( 1905–2000 ) and the US statistician D(onald) Ransom Whitney ( 1915–2001 ) who jointly published the test in 1947...
Wilcoxon–Mann–Whitney U test Quick reference
A Dictionary of Business Research Methods
...Mann–Whitney U test Non-parametric inferential procedure for comparing two independent random samples . Alternative to the two-sample t-test when the normality assumption is breached or when the observations in the samples are ordinal rather than interval or ratio scale data . See also measurement...
Mann–Whitney test
median test
Henry Berthold Mann
Donald Ransom Whitney
non-parametric test
Jonckheere–Terpstra test
Wilcoxon rank-sum test
Bonferroni correction
test for equality of location
parametric test
Kruskal–Wallis test
significance
Wilcoxon’s rank sum test Quick reference
A Dictionary of Dentistry (2 ed.)
...Wilcoxon’s rank sum test [ F. Wilcoxon ( 1892–1965 ), American statistician] See mann–whitney test...
Wilcoxon rank-sum test n. Quick reference
A Dictionary of Psychology (4 ed.)
...rank-sum test n . An alternative name for the Mann–Whitney U test , not to be confused with the Wilcoxon matched-pairs test...
