# Evaluation of Internal and External Validity of a Virtual Environment for Learning a Long Procedure

> Research article (International Journal of Human-Computer Interaction, 2017) · cited 21× · AI/ML

**Wikidata**: [openalex:W2584283106](https://www.wikidata.org/wiki/openalex:W2584283106)  
**Source**: https://4ort.xyz/entity/evaluation-of-internal-and-external-validity-of-a-virtual-environment-for-learning-a-long-procedure