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

 

You should use a paired t-test when:

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

 

Do not use this test when:

  • You want to compare frequency distributionsglossary item: Frequency Distribution
  • The data do not fulfil parametric criteriaglossary item: Parametric criteria