@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

<https://concepts.sagepub.com/social-science/concept/chi-square_test>
  skos:prefLabel "chi-square test"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/phi_coefficient> .

<https://concepts.sagepub.com/social-science/concept/phi_coefficient>
  skos:definition "a variant of Pearson's correlation applied to two variables each of which takes one of two values which may be coded 1 or 2 (or any other pair of values for that matter). As such, its most common applications are in correlating two items on a questionnaire where the answers are coded yes or no (or as some other binary alternatives), and in circumstances in which a 2 x 2 chi-square would alternatively be employed. [Source: <a href=\"https://methods.sagepub.com/reference/the-sage-dictionary-of-statistics/n418.xml\" target=\"_blank\" data-id=\"to-srm\">The SAGE Dictionary of Statistics; phi coefficient</a>]"@en ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/correlation>, <https://concepts.sagepub.com/social-science/concept/chi-square_test> ;
  skos:prefLabel "phi coefficient"@en ;
  a skos:Concept .

<https://concepts.sagepub.com/social-science/concept/correlation>
  skos:prefLabel "correlation"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/phi_coefficient> .

<https://concepts.sagepub.com/social-science/concept/conceptgroup/methods>
  a skos:Collection, isothes:ConceptGroup ;
  skos:prefLabel "methods"@en ;
  skos:member <https://concepts.sagepub.com/social-science/concept/phi_coefficient> .