Convincing Conversations: Using a Computer-Based Dialogue System to Promote a Plant-Based Diet

Emma Zaal, Gregory Mills, Afke Hagen, Carlijn Huisman, Jacobus Hoeks

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    Abstract

    In this study, we tested the effectiveness of a computer-based
    persuasive dialogue system designed to promote a plant-based
    diet. The production and consumption of meat and dairy has
    been shown to be a major cause of climate change and a
    threat to public health, bio-diversity, animal rights and human
    rights. A system promoting plant-based diets was developed,
    comprising conversational, motivational and argumentational
    elements. 280 participants were randomly assigned to one of
    four conditions, each representing a particular combination of
    motivational and argumentational modules. Male participants
    showed higher intention scores in the motivational conditions
    compared to the argumentation-only or control condition.
    Female participants scored higher overall, unaffected by
    condition. These results suggest that men and women are
    differentially sensitive to persuasive strategies regarding the
    adoption of a plant-based diet. It seems to be particularly
    worthwhile to use motivational - as opposed to merely
    argumentational - elements in a persuasive conversation.
    Original languageEnglish
    Title of host publicationProceedings of the Cognitive Science Conference
    Pages3627-3632
    Number of pages6
    Publication statusPublished - 2017

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