This study tests the effects of feedback from a virtual pet on behavior change. A randomized field experiment with 39 adolescents in the US examined how a mobile phone game influenced their likelihood to eat breakfast. Manipulations included varying positive and negative visual feedback in response to participants' photos of breakfast meals. Results indicate that participants with a virtual pet that provided both positive and negative feedback were twice as likely to eat breakfast than those with a pet that provided only positive feedback or participants in the control condition.
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Byrne et al. (2011) studied this question.
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