eXtended Reality Vest: A New Approach to Demonstration-Based Learning

This study examines the design and usability of a new extended reality (XR) training device, XR Vest, which enhances demonstration-based training (DBT) by combining two viewpoints (first- and third-person views). Traditional DBT methods can lack engagement and pose hazards, leading to poor retention. XR technology is used to improve engagement, safety, and immersion. The XR Vest, worn by a trainer, allows for a first-person view of immersive XR environments on an integrated screen while also displaying the trainer's movements in third-person. 28 participants completed training sessions using the XR Vest and a computer monitor. NASA Task Load Index questionnaires and System Usability Scale questionnaires were used to evaluate the effectiveness of the XR Vest. Results showed the XR Vest decreased cognitive load and improved usability. Further research should investigate the benefits of this design in other areas using XR technology for DBT.