Empirical evaluation of the factorial structure of clinical symptoms in schizophrenia: effects of typical neuroleptics on the brief psychiatric rating scale.

Published

Journal Article

There has been little investigation of the effect of neuroleptic medication on the structure of symptoms in schizophrenia. In this study, 135 male schizophrenic patients were rated with the Brief Psychiatric Rating Scale (BPRS) after 4 weeks of treatment with typical neuroleptic medication and after 2 weeks free of neuroleptics, with the order of assessment varying across patients. Confirmatory factor analyses (CFA) found that there were no differences in symptom structure across medication status and no differences in the structure of symptoms in treatment responders and nonresponders. The typical 5-factor BPRS model fit the data poorly and the fit improved considerably through deletion of items measuring symptoms not associated with schizophrenia, suggesting that some of the symptoms that contribute to a total BPRS score may be adding primarily error variance. Although the sample size in this study is limited, the results suggest that using total BPRS scores to measure severity of schizophrenic symptoms should be reconsidered.

Full Text

Duke Authors

Cited Authors

  • Harvey, PD; Davidson, M; White, L; Keefe, RS; Hirschowitz, J; Mohs, RC; Davis, KL

Published Date

  • October 15, 1996

Published In

Volume / Issue

  • 40 / 8

Start / End Page

  • 755 - 760

PubMed ID

  • 8894068

Pubmed Central ID

  • 8894068

International Standard Serial Number (ISSN)

  • 0006-3223

Digital Object Identifier (DOI)

  • 10.1016/0006-3223(95)00486-6

Language

  • eng

Conference Location

  • United States