Split-persona effect: two distinct agent roles (Expert and Motivator) outperformed one combined Mentor agent¶

Claim · All claims
Evidence · 1 study · review r2 · q2
Currency · newest study 2015 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Students learned significantly more and were more motivated with two distinct agents than with one combined mentor agent. → Kim 2015

Evidence¶

Kim 2015¶

Kim, Y., & Baylor, A. L. (2015). Research-Based Design of Pedagogical Agent Roles: a Review, Progress, and Recommendations. Int J Artif Intell Educ. https://doi.org/10.1007/s40593-015-0055-y

q2 · i? · review · r2

The review reports the split-persona effect from Baylor and Ebbers (2003): students "learned significantly more and had significantly greater motivation" with two agents than one mentor agent. No effect size printed in this review.

"we found the split-persona effect, indicating that splitting agent functionality into two distinct agent roles (i.e., Expert and Motivator) is preferable to combining into one agent role (Mentor)"

Discussion¶

Related Claims¶

• Agents with expertise (Expert and Mentor) improved learning outcomes and were perceived as more credible — reports the opposite
• The Mentor agent had the overall best combined impact on learning and motivation — reports the opposite
• Motivational agent roles (Motivator and Mentor) were perceived as more human-like and improved learner self-efficacy — related