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Table 1 Design factors for enthusiastic and neutral agent

From: Exploring the affective, motivational and cognitive effects of pedagogical agent enthusiasm in a multimedia learning environment

  Enthusiastic agent Neutral agent
Facial expression Constantly smiling, expressive facial movements, and eyes that open wide and “light up” when delivering lesson Calm and neutral when delivering lesson
Gesture High level of animated head movement; constantly nodding Low level of animated head movement; no nodding
Voice Enthusiastic voice, fast tempo, large dynamic pitch variation, pitch contour up Calm and pleasant voice, moderate tempo, low pitch level, small pitch variations (i.e., newsreader presenter style)
Dialogue Additional remarks such as “I love programming” and “this is an interesting topic” No additional remarks