title: [The use of kappa in the study of variability between observers].
authors.forename: S J
authors.initials: SJ
authors.lastname: Veldhuyzen van Zanten
authors.forename: A
authors.initials: A
authors.lastname: Hijdra
mesh_terms: D003933:Diagnosis; D006801:Humans; D013223:Statistics as Topic
vernacular_title: Onderzoek naar variatie tussen waarnemers met behulp van kappa.