# Robust Machine Learning for Treatment Effects in Multilevel Observational Studies Under Cluster-level Unmeasured Confounding

> Research article (Psychometrika, 2021) · cited 14× · AI/ML

**Wikidata**: [openalex:W3163911212](https://www.wikidata.org/wiki/openalex:W3163911212)  
**Source**: https://4ort.xyz/entity/robust-machine-learning-for-treatment-effects-in-multilevel-observational-studies-under-cluster-level-unmeasured-confoun