Glossary items: click on the icon to go directly to the glossary entry


You should use a Wilcoxon signed-rank test when:

  • You are looking for a difference between two samplesglossary item: Sample
  • Where data in the samples are measured at scaleglossary item: Scale data  or ordinal glossary item: Ordinal data  level
  • The data are relatedglossary item: related data


Do not use this test when:

  • You want to compare frequency distributionsglossary item: Frequency Distribution