# Attribute Hierarchy Models in Cognitive Diagnosis: Identifiability of the Latent Attribute Space and Conditions for Completeness of the Q-Matrix

> Research article (Journal of Classification, 2018) · cited 18× · AI/ML

**Wikidata**: [openalex:W2901241468](https://www.wikidata.org/wiki/openalex:W2901241468)  
**Source**: https://4ort.xyz/entity/attribute-hierarchy-models-in-cognitive-diagnosis-identifiability-of-the-latent-attribute-space-and-conditions-for-compl