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Scale for the Assessment of Positive Symptoms (SAPS)
Please email the authors for information about obtaining the instrument:
Supplemental – Highly Recommended: Parkinson's Disease (PD)
Short Description of Instrument
The Scale for the Assessment of Positive Symptoms (SAPS) has 30 items and provides coverage of hallucinations, delusions, and behavioral changes associated with psychosis and was developed for schizophrenia. Information is acquired from both the patient and an informant.
The SAPS is linked closely to the Scale for the Assessment for Negative Symptoms (SANS).
Each SAPS item is scored on a 6-point Likert-type scale (0-5). The sum of the 4 global domains (hallucinations, delusions, bizarre behavior, and formal thought disorder) produces a summary score of 0–20, and the sum of the 30 individual items provides a composite score of 0–150.
Andreasen NC. Scale for the assessment of positive symptoms (SAPS). Iowa City, Iowa: University of Iowa; 1984.
Voss T et al. Performance of the scale for assessment of positive symptoms in Parkinson's disease psychosis. Mov Disord. 2010 Jan 15;25(1):124-125.


Document last updated July 2019