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Scales to measure dimensions of hallucinations and delusions: the psychotic symptom rating scales (PSYRATS)

Published online by Cambridge University Press:  01 July 1999

G. HADDOCK ,
J. McCARRON ,
N. TARRIER  and
E. B. FARAGHER
G. HADDOCK
Affiliation:
From the Department of Clinical Psychology, University of Manchester and Department of Medical Statistics, Withington Hospital, Manchester; and Department of Clinical Psychology, Royal Bolton Hospital, Bolton
J. McCARRON
Affiliation:
From the Department of Clinical Psychology, University of Manchester and Department of Medical Statistics, Withington Hospital, Manchester; and Department of Clinical Psychology, Royal Bolton Hospital, Bolton
N. TARRIER
Affiliation:
From the Department of Clinical Psychology, University of Manchester and Department of Medical Statistics, Withington Hospital, Manchester; and Department of Clinical Psychology, Royal Bolton Hospital, Bolton
E. B. FARAGHER
Affiliation:
From the Department of Clinical Psychology, University of Manchester and Department of Medical Statistics, Withington Hospital, Manchester; and Department of Clinical Psychology, Royal Bolton Hospital, Bolton
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Abstract

Background. Scales to measure the severity of different dimensions of auditory hallucinations and delusions are few. Biochemical and psychological treatments target dimensions of symptoms and valid and reliable measures are necessary to measure these.

Method. The inter-rater reliability and validity of the Psychotic Symptom Rating Scales (PSYRATS: auditory hallucination subscale and delusions subscale), which measure several dimensions of auditory hallucinations and delusions were examined in this study.

Results. The two scales were found to have excellent inter-rater reliability. Their validity as compared with the KGV scale (Krawiecka et al. 1977) was explored.

Conclusions. It is concluded that the PSYRATS are useful assessment instruments and can complement existing measures.

Type
Research Article
Information
Psychological Medicine , Volume 29 , Issue 4 , July 1999 , pp. 879 - 889
Copyright
© 1999 Cambridge University Press

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