[The inter-rater reliability of the Dutch version of the core. A validation study conducted among depressed elderly in-patients]
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D Rhebergen1, A Rouwenhorst, H C Comijs
1GGZ inGeest, circuit Ouderen, Valeriuskliniek, Amsterdam. d.rhebergen@ggzingeest.nl
Background:
Assessment of psychomotor symptoms may lead to better classification of depressive disorders.
Aim:
To test the inter-rater reliability of the Dutch version of CORE, an observational instrument for psychomotor symptoms.
Method:
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.
Conclusion:
The Dutch version of the CORE is a reliable instrument.
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