Yugo Hayashi

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The present study investigates how a conversational agent can facilitate explanation activity. An experiment was conducted where pairs of participants, who were enrolled in a psychology course, engaged in a task of explaining to their partners the meanings of concepts of technical terms taught in the course. During the task, they interacted with a(More)
A psychological experiment was conducted to capture the nature of Human-Human and Human-Agent Interactions where humans and computer agents coexist in a collaborative environment. Two factors were manipulated to investigate the influences of the 'schema' about and the 'actual partner' on the characteristics of communication. The first factor, expectation(More)
The study investigates learning activities of students making explanations about a key concept in an online system with a Pedagogical Conversational Agent providing (1) facilitation on learners' explanations from various views and (2)social facilitation prompts of other members in the classroom. A total of 314 learner's explanation activities were collected(More)
Studies in collaborative learning show that learners with fewer social interaction skills have difficulty during collaborative activities with others. The present study investigates how such a learner's skills influence the performance of an online concept-learning tutoring task with a Pedagogical Conversational Agent (PCA). During the task, the learners(More)