Development and Preliminary Evaluation of a Brief Health Chatbot Acceptability Scale (CAS): A Pilot Study

Background. Conversational agents (chatbots) are increasingly used to deliver health information to middle-aged and older adults, a population in which the determinants of technology acceptance are known to diverge from those of younger users. However, acceptability is inconsistently defined and typically measured with ad hoc, unvalidated instruments. The psychometrically sound chatbot measures that exist assess usability rather than acceptability or were validated in student samples. Objective. To develop and conduct an initial psychometric evaluation of a brief, 10-item health chatbot accept

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