Positive and Negative Syndrome Scale Clinical Classification

**Semantic type:** Intellectual Product

**Definition:** A standardized rating scale developed by Kay et al in 1987, which is a classification system used to measure severity of patients with schizophrenia. This instrument rates a patient on a scale of 1 (absent) to 7 (extreme) on 30 different symptoms.

**Synonyms:** - PANSS - PANSS - PANSS1