# Subtypes of the missing not at random missing data mechanism.

> Research article (Psychological Methods, 2021) · cited 23× · AI/ML

**Wikidata**: [openalex:W3175149165](https://www.wikidata.org/wiki/openalex:W3175149165)  
**Source**: https://4ort.xyz/entity/subtypes-of-the-missing-not-at-random-missing-data-mechanism