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Vending machine backgrounds: nudging healthier beverage choices
Ryan Calabro1, Eva Kemps1, Ivanka Prichard2
1Psychology, College of Education, Psychology and Social Work, School of Psychology, Flinders University, GPO Box 2100, SA 5001 Adelaide, Australia.
Current Psychology (New Brunswick, N.J.)
|June 26, 2023
Summary
Vending machine wraps did not significantly alter soft drink choices. However, a black display increased caffeine-based selections, suggesting color-based nudges can influence beverage choices.
Area of Science:
- Public Health
- Behavioral Science
- Consumer Psychology
Background:
- Soft drink overconsumption presents a significant public health challenge.
- Understanding factors influencing beverage choice is crucial for developing effective interventions.
- Vending machines are common points of purchase for beverages, especially among young adults.
Purpose of the Study:
- To investigate the impact of visual priming (vending machine wraps) on soft drink consumption.
- To determine if specific visual cues (logos, images, colors) can nudge healthier beverage choices.
- To explore the relationship between perceived beverage attributes and actual selection behavior.
Main Methods:
- Two studies involving young adults (17-25 years) were conducted.
- Participants were exposed to different vending machine wrap conditions (logos, images, colors, control).
- Beverage choices were recorded, along with ratings of liking, consumption frequency, refreshing value, healthiness, taste, and energy.
Main Results:
- Vending machine wrap type did not significantly influence beverage choice in Study 1.
- A black control display in Study 2 led to significantly more caffeine-based beverage selections.
- Beverage liking, consumption frequency, taste, healthiness, and refreshing value were significant predictors of choice.
Conclusions:
- Visual priming through vending machine wraps has a limited effect on reducing soft drink choices.
- Color-based priming, specifically the use of a black display, can influence beverage selection towards caffeinated options.
- Personal preferences and perceptions play a substantial role in beverage choices, independent of external nudges.
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