1. Usability of an Intelligent Virtual Assistant for Promoting Behavior Change and Self-Care in Older People with Type 2 Diabetes.
- Author
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Balsa, João, Félix, Isa, Cláudio, Ana Paula, Carmo, Maria Beatriz, Silva, Isabel Costa e, Guerreiro, Ana, Guedes, Maria, Henriques, Adriana, and Guerreiro, Mara Pereira
- Subjects
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HEALTH self-care , *PATIENT compliance , *ASSISTIVE technology centers , *PEOPLE with diabetes , *GRAPHICAL user interfaces , *QUALITATIVE research , *BEHAVIOR modification , *RESEARCH funding , *ARTIFICIAL intelligence , *CONTENT analysis , *CLINICAL trials , *BEHAVIOR , *JUDGMENT sampling , *LONGITUDINAL method , *THEMATIC analysis , *CONCEPTUAL structures , *HEALTH behavior , *SOCIAL support , *DRUGS , *PSYCHOSOCIAL factors , *ALGORITHMS , *DIET , *PHYSICAL activity , *OLD age - Abstract
In the context of the VASelfCare project, we developed an application prototype of an intelligent anthropomorphic virtual assistant. Designed as a relational agent, the virtual assistant has the role of supporting older people with Type 2 Diabetes Mellitus (T2D) in medication adherence and lifestyle changes. Our paper has two goals: describing the essentials of this prototype, and reporting on usability evaluation. We describe the general architecture of the prototype, including the graphical component, and focus on its main feature: the incorporation, in the way the dialogue flows, of Behavior Change Techniques, identified through a theoretical framework, the Behaviour Change Wheel. Usability was experimentally evaluated in field tests in a purposive sample of 20 participants (11 older adults with T2D and 9 experts). The Portuguese version of the System Usability Scale was employed, supplemented with qualitative data from open questions, diaries, digital notes and telephone follow-ups. The aggregated mean SUS score was 73,75 (SD 13,31), which corresponds to a borderline rating of excellent. Textual data were content analyzed and will be prioritized to further improve usability. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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