Nudging sustainable consumer deecisions with behavioral design
Designer & Strategist, with IIT Institute of Design (ID), 2022, for Mars Wrigley
Context
At IIT Institute of Design, I took a Behavioral Design workshop course, in partnership with the Mars Wrigley BioDesign Challenge. I worked with a team of four on a design sprint to explore the following research question:
How might the moment of deciding whether to purchase a product be redesigned to encourage more sustainable consumerism?
Contributions
As a team of four, we engaged in rapid, iterative prototyping to test customer responses to different design interventions at the point of purchasing product at a gocery store in Chicago, as an international resident. After defining the scope of work and research criteria, we conducted a screener survey to filter participants based on demographic diversity and shopping habits. We then held 1:1 interviews to better understand those users habits and needs, before rounds of usability tests with our focal group on a suite of 16 protoypes that simulated a redesigned purchasing experience.
One example of a protoype we designed and tested was an AR app that would enable customers in grocery stores to scan unfamiliar produce and get a variety of information about ripeness, seasonality, common flavor pairings, and recipes from different global regions (Image A). This prototype ended up being quite motivating to research participants to try Brussels sprouts for the first time.
Image A
![](https://freight.cargo.site/t/original/i/d9588bfaeebdb1a462a755a3b737c2297244acd2df13563c9fbcce9133101183/Screenshot-2024-05-21-at-2.05-1.jpg)
Capabilities
Sustainable service design | UX research | Iterative prototyping | Measuring & evaluating impact
Outcomes
Upon completion of the research sprint we had an engaging panel discussion with a range of Behavioral Design specialists who were intrigued by the matrix that we designed to synthesize insights and compare prototypes (Image B) and said they would use it as inspiration to inform future studies.
Image B
![](https://freight.cargo.site/t/original/i/d1cc272420907932eaab225a06b7fc4e9e1fbf1e6e92475d05dd0e5fd07ed0d5/Screenshot-2024-05-21-at-2.05-2.png)
This matrix was used to summarize the results of our rounds of usability tests. We used a heat map to highlight which prototypes in the matrix performed in a way that was more motivating to research participants. Prototype H, the try-before-you-buy method, most successfully encouraged research participants (international students) to decide on the spot to buy a new type of (sustainable, in season, local) produce.