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Combining Persuasive System Design Principles and Behavior Change Techniques in Digital Interventions Supporting
Rikke Aune Asbjørnsen1,2,3, Jøran Hjelmesæth4,5, Mirjam Lien Smedsrød6
1Center for eHealth and Wellbeing Research, Department of Psychology, Health and Technology, University of Twente, Enschede, Netherlands.
JMIR Human Factors
|May 27, 2022
Summary
Digital interventions combining persuasive system design (PSD) principles and behavior change techniques (BCTs) can effectively support long-term weight loss maintenance by tailoring features to user needs. The eCHANGE intervention demonstrates this integrated approach for sustainable health behavior change.
Area of Science:
- Digital Health Interventions
- Behavior Change Science
- Obesity Management
Background:
- Long-term weight maintenance is a significant challenge requiring innovative solutions.
- Digital technologies offer potential for supporting behavior change and weight loss maintenance.
- Integrating persuasive system design (PSD) principles and behavior change techniques (BCTs) is crucial for effective digital interventions.
Purpose of the Study:
- To investigate the design and development of an evidence-informed digital intervention for weight loss maintenance.
- To combine PSD principles and BCTs into specific design features addressing end-user needs and values.
- To support long-term weight maintenance through a tailored digital behavior change intervention.
Main Methods:
- Employed design thinking and Agile methodologies for intervention development.
- Involved 45 stakeholders, including end-users, healthcare providers, and technical experts, in co-design and usability testing.
- Utilized formative evaluation and qualitative analyses to refine design features and optimize technology.
Main Results:
- Identified 17 design features integrating PSD principles and BCTs for the eCHANGE intervention.
- Features were organized into four components: Week Plan, My Overview, Knowledge and Skills, and Virtual Coach.
- Implemented PSD principles (e.g., tailoring, self-monitoring, rewards) and BCTs (e.g., goal setting, feedback, social support) to foster sustained behavior change.
Conclusions:
- Combining PSD principles and BCTs in digital interventions enhances engagement and motivation aligned with user needs.
- The eCHANGE intervention's design provides a model for future evidence-informed digital health behavior change tools.
- This approach offers valuable insights for designing interventions beyond weight loss maintenance.
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