# A Design-Based Approach to Improve External Validity in Welfare Policy Evaluations

> Research article (Evaluation Review, 2016) · cited 23× · AI/ML

**Wikidata**: [openalex:W2484937709](https://www.wikidata.org/wiki/openalex:W2484937709)  
**Source**: https://4ort.xyz/entity/a-design-based-approach-to-improve-external-validity-in-welfare-policy-evaluations