Evaluation of Computer-Tailored Motivational Messaging in a Health Promotion Context
Persuasive messages have recently been shown to be more effective when tailored to the personality and preferences of the recipient. However, much of the literature on adaptive persuasion has evaluated the effectiveness of persuasive attempts by the direct reactions to those attempts instead of changes on the longer term (e.g. lifestyle changes). Results of this study suggest that adaptive persuasion improves attitudes towards persuasive attempts, but does not necessarily cause a change in longer term behavior. This was found through a randomized controlled trial evaluating the implementation an adaptive persuasive system in a health promotion intervention. This article provides a detailed description of this evaluation and encourages the research community to (1) become more skeptical towards the longer term effectiveness of adaptive persuasive techniques and (2) design more explicitly for longer term changes in behavior.
KeywordsPersuasion Individual differences Health promotion
This work is part of the research program ‘Gamification for Overweight Prevention and Active Lifestyle’ (443001101), which is partly financed by the Netherlands Organisation for Health Research and Development (ZonMw). The authors also thank Kalliopi Zervanou for feedback on an early version of this work
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