03/06/2026
🎓 NEW MHIT THESIS 🎓
Yutong Jin's (Richie Kim) MHIT Thesis, "One soul, many forms: the impact of identity continuity on rapport, emotional connectedness, and credibility in virtual agents," is now available in the UC Research Repository at https://doi.org/10.26021/16462.
Background: Interactive agents, ranging from conversational Artificial Intelligence (e.g., ChatGPT) to virtual assistants (e.g., Siri, Alexa), are AI systems that engage users through natural interaction across various contexts. Identity continuity, whether interactive agents maintain consistent identity across interactions, remains underexplored despite its potential impact on relationship quality.
Objective: This study investigates how identity continuity affects rapport, emotional connectedness, and credibility in human-agent interactions across multiple games in Virtual Reality (VR).
Methods: We conducted a between-subjects experiment with 26 participants (13 per condition) who completed three games with interactive agents. The continuous identity (C) group interacted with the same agent (the same identity with changing form) across all games, while the discontinuous identity (DC) group encountered different identities in each game. We measured rapport using a validated scale, emotional connectedness with a single-item measure, and credibility using a validated scale.
Results: Identity continuity significantly enhanced all measured dimensions. The C group showed significantly higher rapport, substantially higher emotional connectedness, and significantly greater credibility compared to the DC group.
Conclusions: Identity continuity appears to be an important factor in building meaningful human-agent relationships. These findings suggest potential implications for designing interactive agents intended for longitudinal user engagement.
University of Canterbury UC Engineering