Personas and Behavioral Theories: A Case Study Using Self-Determination Theory to Construct ...
summary
Uses Self-Determination Theory to build five personas for a digital weight-loss coach, starting from 20 interviews plus standardized motivation surveys; analysis mixes bottom-up coding with top-down SDT constructs (autonomy, competence, relatedness), maps subjects on behavioral axes, then clusters into personas skeletons and full narratives. Personas drive ideation and prototypes, inform a clinical trial with under 60 participants and a summative UX check, and reveal specific barriers and coaching strategies tied to each persona rather than generic user types.
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chapters (5)
- 0:00Introduction to personas
- 3:44Case study on obesity
- 8:52Persona development process
- 16:42Using personas in design
- 19:34Q&A session
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