title: [The inter-rater reliability of the Dutch version of the core. A validation study conducted among depressed elderly in-patients].
abstract: BACKGROUND
  Assessment of psychomotor symptoms may lead to better classification of depressive disorders.
  
  
  OBJECTIVE
  To test the inter-rater reliability of the Dutch version of CORE, an observational instrument for psychomotor symptoms.
  
  
  METHODS
  The CORE was used with 37 depressed in-patients and was scored by 5 psychiatrists. Intra-class correlation (ICCagreement) was tested.
  
  
  RESULTS
  ICCagreement of the total score (0.80), and the subscales non-interaction (0.74), retardation (0.70) and agitation (0.79) were sufficient.
  
  
  CONCLUSIONS
  The Dutch version of the CORE is a reliable instrument.
authors.affiliation: GGZ inGeest, circuit Ouderen, Valeriuskliniek, Amsterdam. d.rhebergen@ggzingeest.nl
authors.forename: D
authors.initials: D
authors.lastname: Rhebergen
authors.forename: A
authors.initials: A
authors.lastname: Rouwenhorst
authors.forename: H C
authors.initials: HC
authors.lastname: Comijs
authors.forename: A
authors.initials: A
authors.lastname: Dols
authors.forename: A T F
authors.initials: AT
authors.lastname: Beekman
authors.forename: C B
authors.initials: CB
authors.lastname: Terwee
authors.forename: D
authors.initials: D
authors.lastname: Arts
authors.forename: M L
authors.initials: ML
authors.lastname: Stek
mesh_terms: D000368:Aged; D003863:Depression / Q000175:diagnosis* / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D011596:Psychomotor Disorders / Q000175:diagnosis* / Q000453:epidemiology; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires / Q000592:standards*; D014175:Translating