The brief symptom inventory and the positive and negative syndrome scale: discriminate validity between a self-reported and observational measure of psychopathology
Section snippets
Patients
Patients were recruited from two early psychosis intervention programs in the southern metropolitan region of Perth Western Australia. DSM-IIIR diagnosis was generated by a psychiatrist using OPCRIT.23 Data for the diagnosis were obtained by a combination of clinical interview and review of case notes.
The BSI and PANSS scores consisted of the initial assessment interviews conducted within 4 to 6 weeks of patients entering treatment in the early psychosis programs. In order for psychopathology
Results
Of the 69 interviews conducted 61% of the PANSS interviews and BSI forms were completed on the same day while the remainder were completed within 7 days of each other.
Discussion
Symptom dimensions from the BSI where entered into multivariate symptom clusters to explain high versus low scores on subscales from the PANSS. As individual variables they only described moderate discriminate power; however, when analyzed in combination with each other the symptom dimensions were able to demonstrate considerable power to classify high versus low scores on their respective PANSS subscale groups. This is noted particularly for symptom dimensions that describe the positive
Acknowledgements
The authors wish to acknowledge the valuable contribution of clinicians from the First Psychosis Liaison Unit, Bentley Mental Health Service, and the Rockingham/Kwinana Early Psychosis System of Care Service to this research project. Acknowledgment is also given to Dr. Peter Sevastos, Curtin University of Technology, Western Australia, for his advice on the statistical analysis.
References (29)
- et al.
Measurement of therapeutic response in schizophrenia. A critical survey
Schizophr Res
(1991) - et al.
Self-reported social functioning among older patients with schizophrenia
Schizophr Res
(1997) - et al.
Clinical predictors of discrepancy between self-ratings and examiner ratings for negative symptoms
Compr Psychiatry
(2000) - et al.
The concordance between symptom information gathered from remitted schizophrenic patients and their relatives
J Psychiatr Res
(1995) - et al.
Validity of self-administered symptom scales in clients with schizophrenia and schizoaffective disorders
Schizophr Res
(1996) - et al.
Cognitive Behaviour Therapy for Psychosis
(1996) - et al.
Cognitive Therapy for Delusions Voices and Paranoia
(1997) - et al.
Group treatment of auditory hallucinations
Br J Psychiatry
(1999) CBT succeeds with resistant schizophrenia
11th World Congress of Psychiatry, Hamburg, Germany
(1999)Early intervention in psychotic relapsecognitive approaches to detection and management
Behav Change
(1995)
Psychosocial functioning and subjective experience in schizophrenia
Schizophr Bull
Subjective experiences of schizophrenia and related disordersimplications for understanding and treatment
Schizophr Bull
Awareness of illness in schizophrenia
Schizophr Bull
Report of the International Pilot Study of Schizophrenia
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