@prefix n9j: <http://data.loterre.fr/ark:/67375/N9J> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .

n9j:-C8NQZ4GL-J
  skos:prefLabel "statistics and research methods"@en ;
  a skos:Concept ;
  skos:narrower n9j:-DT86C06Q-R .

n9j:-methods
  a isothes:ConceptGroup ;
  skos:prefLabel "methods"@en ;
  skos:member n9j:-DT86C06Q-R .

n9j: a skos:ConceptScheme .
n9j:-DT86C06Q-R
  owl:sameAs <https://concepts.sagepub.com/social-science/concept/degrees_of_freedom> ;
  skos:definition "a difficult concept which has a bearing on many of the basic inferential statistical techniques. Statistical estimates based on samples often contain redundant information which if included may lead to a systematic bias in the estimate. [Source: The SAGE Dictionary of Statistics; degrees of freedom]"@en ;
  a skos:Concept ;
  skos:inScheme n9j: ;
  skos:broader n9j:-PT0CSW3B-L, n9j:-C8NQZ4GL-J ;
  skos:prefLabel "degrees of freedom"@en .

n9j:-PT0CSW3B-L
  skos:prefLabel "chi-square test"@en ;
  a skos:Concept ;
  skos:narrower n9j:-DT86C06Q-R .