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We present a retrospective view on our experience with small groups of more than 175 children (ages 4 to 10) playing versions of a language-based game hosted by an animated character. After describing the task, the audio-visual annotations used for modeling, and the regularities we see in the children's communicative behavior, we conclude with observations and challenges for other researchers interested in autonomous HCI and HRI with this population.
Jill Fain Lehman (2014) studied this question.