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[The Basel Screening Instrument for Psychosis (BSIP): development, structure, reliability and validity].
A Riecher-Rössler1, J Aston, J Ventura
1Psychiatrische Poliklinik, Universitätsspital Basel. ariecher@uhbs.ch
Fortschritte Der Neurologie-Psychiatrie
|April 9, 2008
Summary
The Basel Screening Instrument for Psychosis (BSIP) is a new tool for early psychosis detection. It shows high reliability and predictive validity, aiding in identifying individuals at risk for developing psychosis.
Area of Science:
- Psychiatry
- Psychological Medicine
- Neuroscience
Context:
- Early detection of psychosis is crucial for timely intervention.
- Existing screening tools lack sufficient validity for early-stage psychosis.
- The Basel Screening Instrument for Psychosis (BSIP) was developed to address this gap.
Purpose:
- To describe the development and structure of the BSIP.
- To evaluate the feasibility, interrater-reliability, and validity of the BSIP.
- To report the findings from reliability and validity studies.
Summary:
- The BSIP is a semi-structured interview developed from literature on psychosis risk factors and early signs.
- It identifies seven key categories relevant for early psychosis detection.
- The instrument demonstrated high interrater-reliability (Kappa .87) and predictive validity comparable to existing comprehensive tools.
Impact:
- The BSIP is the first validated screening instrument for early psychosis detection based on transition to psychosis.
- It is user-friendly for experienced psychiatrists.
- The BSIP offers high interrater-reliability and predictive validity, improving early identification of at-risk individuals.
