# Negative polarity item (NPI) illusion is a quantification phenomenon.

> Research article (Journal of Experimental Psychology Learning Memory and Cognition, 2020) · cited 18× · AI/ML

**Wikidata**: [openalex:W3110192906](https://www.wikidata.org/wiki/openalex:W3110192906)  
**Source**: https://4ort.xyz/entity/negative-polarity-item-npi-illusion-is-a-quantification-phenomenon