Kasuya, E. 2001 . Mann-Whitney U test when variances are unequal. Anim. Behav 61: 1247 – 1249 .Kasuya E.Mann-Whitney U test when variances are unequal. Animal Behaviour . 2001KASUYA E. «Mann-Whitney U test when variances are unequal». Animal Behaviour 61 (2001): 1247-1249....
normally distributed (to do this in SPSS Statistics see our guide on Transforming Data), or (2) run the Mann-Whitney U test which is a non-parametric test that does not require the assumption of normality (to run this test in SPSS Statistics see our guide on the Mann-Whitney U Test)....
When do we use an independent t-test vs Mann Whitney U test? When would someone use a longitudinal study over an experimental study? What type of inferential analysis should be used to test if participants' neuroticism is equally distributed in the three age groups,...
Questionnaire data were analyzed with Mann-Whitney-U-Tests for the following dependent variables (1) ratings of the importance of route choice factors, (2) the number of considered alternative route options, and (3) ratings of how difficult or easy it was to decide. 3. Results 3.1. Riding ...
Both these statistics are asymptotically unbiased, asymptotically normally distributed and reduce to the standard Mann-Whitney statistic when there is no censoring. A test of equality of sojourn time distributions in two independent samples is constructed by symmetrizing the second statistic. The testing...
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Data were reported as median values with an interquartile range (IQR) and direct comparisons were made with Mann-Whitney rank-sum tests. Percentages were used to describe categorical outcomes and distributions of categorical data were compared with either a Pearson’s χ2 test or a Fisher’s ...
The second point is that a t-test is normally not applicable because the assumptions are not meet. Therefore, nonparameterized alternative tests like the Mann-Whitney-Wilcoxon U test should be used. Conclusion These seven mistakes are often seen in publications about Raman spectroscopy and should ...
et al. For (ii), we carried out a similar Pearson correlation analysis, followed by a Mann-Whitney U test to determine whether the standard deviation of the confidence was greater for questions than for students. We also used Mann-Whitney U tests to determine whether there was a difference ...
as data was normally distributed. Unpaired Mann-Whitney-Wilcoxon tests were used for pairwise comparisons between treatment groups. When more than two samples were compared, Kruskal-Wallis test was applied.Pvalues were corrected for the total number of comparisons with the use of a false-discovery...