# Investigating Separate and Concurrent Approaches for Item Parameter Drift in 3PL Item Response Theory Equating

> Research article (International Journal of Testing, 2016) · cited 10× · AI/ML

**Wikidata**: [openalex:W2528040884](https://www.wikidata.org/wiki/openalex:W2528040884)  
**Source**: https://4ort.xyz/entity/investigating-separate-and-concurrent-approaches-for-item-parameter-drift-in-3pl-item-response-theory-equating