The Wilcoxon paired rank sign test assumes symmetry. (cf. http://www.basic.northwestern.edu/statguidefiles/srank_paired_alts.html )
Christophe Pallier On 5/10/07, Alexander Kollmann <[EMAIL PROTECTED]> wrote: > > Hello, > > given situation: > > - pre / post test comparison of discrete, paired data [values can be > 1,2,3,4]. > - the data are neither normal distributed nor symetric > > Which test should I use to calculate the p-value? Is the wilcoxon rank sum > test ok ? > > > Alex > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
