The following instruments have been delevoped by the FePsy-Project:
Risk Checklist for doctors, psychologists, a.o. → Download PDF
The Risk Checklist can be used as guidance for professionals to decide – for example in the family practice – if referral to specialized clinical services is indicated.
Selfscreen-Prodrome → Download PDF
This self-assessment instrument is filled in by potential patients and briefly evaluated (in about one minute) by professionals. It can roughly identify individuals who are at increased risk for psychosis or who may already be experiencing psychotic symptoms.
The Selfscreen-Prodrome and the Risk Checklist can complement one another, but can also be used sequentially. An interactive version of the Selfscreen-Prodrome is available on this website: Self-test.
Validation and scientific background:
- Kammermann J., Stieglitz R.-D., Riecher-Rössler A. (2009). «Selbstscreen-Prodrom» – Ein Selbstbeurteilungsinstrument zur Früherkennung von psychischen Erkrankungen und Psychosen. Fortschritte der Neurologie · Psychiatrie, 77(5), 278–284. DOI: 10.1055/s-0028-1109227
- Müller M., Vetter S., Buchli-Kammermann J., Stieglitz R.-D., Stettbacher A., Riecher-Rössler A. (2010). The Self-screen-Prodrome as a short screening tool for pre-psychotic states. Schizophrenia Research, 123(2–3), 217–224. Open on ScienceDirect
Basel Screening Instrument for Psychoses (BSIP) → Download PDF
The BSIP is a short instrument for the early detection of beginning psychoses respectively a state of risk, which is applicable in the clinical practice and can be conducted in a timely manner. It can help to decide if a patient
- has no risk for psychosis,
- is at risk for psychosis, or
- already suffers from frank psychosis.
It was created to identify individuals which should be thoroughly assessed in a next step. The BSIP is a check list with instructions for a half-structured clinical interview by a psychiatrist. The interview approximately takes 45 to 60 minutes. Training is recommended.
Validation and scientific background:
- Riecher-Rössler A., Aston J., Ventura J., Merlo M., Borgwardt S.J., Gschwandtner U., Stieglitz R.-D. (2008). The Basel Screening Instrument for Psychosis (BSIP): development, structure, reliability and validity. Fortschritte der Neurologie · Psychiatrie, 76(4), 207–216. DOI: 10.1055/s-2008-1038155
- Peralta D., Studerus E., Andreou C., Beck K., Ittig S., Leanza L., Egloff L., Riecher-Rössler A. (2018). Exploring the predictive power of the unspecific risk category of the Basel Screening Instrument for Psychosis. Early Intervention in Psychiatry. DOI: 10.1111/eip.12719
Basel Interview for Psychosis (BIP)
The BIP is a comprehensive semi-structured interview developed for the FePsy study. Unlike the shorter BSIP, which serves primarily as a screening tool to decide whether a referral is indicated, the BIP captures risk factors, early warning signs and the temporal development of psychiatric symptoms over the entire lifespan in detail — both in patients with an at-risk mental state (ARMS) and in patients with a first episode of psychosis (FEP).
The interview covers six sections: 1) social and physical development and family, 2) signs and symptoms, 3) vulnerability, 4) help-seeking behaviour, 5) illness insight, and 6) evaluation of the interview. In a reliability and validity study, 98 % of the assessed items reached sufficient inter-rater reliability; the "signs and symptoms" section yielded five subscales with good to very good psychometric properties.
Validation and scientific background:
- Riecher-Rössler A., Ackermann T., Uttinger M., Ittig S., Koranyi S., Rapp C., Bugra H., Studerus E. (2015). The Basel Interview for Psychosis (BIP): Structure, Reliability and Validity. Fortschritte der Neurologie · Psychiatrie, 83(2), 99–108. DOI: 10.1055/s-0034-1398999
Dynamic Psychosis-Risk Prediction (DPRP) → open the online calculator
A dynamic risk prediction model that estimates the individual psychosis risk in patients at Clinical High Risk for Psychosis (CHR-P). In contrast to static calculators, the DPRP updates its prognosis as new follow-up data become available. Developed and internally validated on the FePsy cohort (Studerus et al., 2020).