A comparison of the utility of dimensional and categorical representations of psychosis

  title={A comparison of the utility of dimensional and categorical representations of psychosis},
  author={Jim van os and Catherine M. Gilvarry and Risha Bale and Elizabeth R. Van Horn and Theresa Tattan and Ian White and Robin M. Murray},
  journal={Psychological Medicine},
  pages={595 - 606}
Background. The usefulness of any diagnostic scheme is directly related to its ability to provide clinically useful information on need for care. In this study, the clinical usefulness of dimensional and categorical representations of psychotic psychopathology were compared. Method. A total of 706 patients aged 16–65 years with chronic psychosis were recruited. Psychopathology was measured with the Comprehensive Psychopathological Rating Scale (CPRS). Lifetime RDC, DSM-III-R, and ICD-10… 

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