Her research is in personalisation and intelligent user interfaces. She is interested in personalizing behavior change mechanisms for encouraging people to live more healthily and sustainably, and in adapting motivating and emotional support messages to personality. She has co-organized four workshops on behavior change technology. She serves on the editorial board of User Modeling and User-Adapted Interaction, and is current guest-editing a special issue on Personalization and Behavior Change. She was program chair of the UMAP conference in 2012 and is a director of User Modeling Inc., the professional association of user modeling researchers. She has served on the PC of Persuasive since 2006.