Wilcoxon test (paired samples)
DescriptionThe Wilcoxon test for paired samples is the nonparametric equivalent of the paired samples ttest. It should be used when the sample data are not Normally distributed, and they cannot be transformed to a Normal distribution by means of a logarithmic transformation. Required inputSelect the variables for sample 1 and sample 2, and a possible filter for the data pairs. You can use the button to select variables and filters in the variables list. ResultsThe Wilcoxon test for paired data ranks the absolute values of the differences between the paired data in sample 1 and sample 2 and calculates a statistic on the number of negative and positive differences (differences are calculated as sample 2  sample 1). Literature
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