# How to Be RAD: Repeated Acquisition Design Features that Enhance Internal and External Validity

> Research article (Perspectives on Behavior Science, 2021) · cited 18× · AI/ML

**Wikidata**: [openalex:W3188720641](https://www.wikidata.org/wiki/openalex:W3188720641)  
**Source**: https://4ort.xyz/entity/how-to-be-rad-repeated-acquisition-design-features-that-enhance-internal-and-external-validity