I’ll have what they’re having: a descriptive social norm increases choice for vegetables in students

ABSTRACT

Social information, such as norms, influences behavior. Descriptive norms can be used to guide behavior toward healthier choices. Here, we examined the effect of a descriptive norm on the choice between two similar products (vegetables or fruits). Participants were exposed to a norm promoting vegetables, fruits, or no norm in a remote confederate design. A descriptive norm signaling that a greater proportion of previous participants had chosen a vegetable over a fruit basket tripled the odds of participants choosing vegetables. We found no to small effects of norms on intentions to consume fruits and vegetables or on taste expectations and experiences in a taste test. These findings suggest that descriptive norms may serve as a heuristic to guide food choices in certain choice settings involving similar options.

KEYWORDS:

• Social norms
• social modeling
• food choice
• healthy food
• vegetables

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

The data that support the findings of this study are openly available on the Open Science Framework at https://osf.io/d4c8y/?view_only=a64d519e70a94c63bc5b3aa04373fed5.

Open Scholarship

This article has earned the Center for Open Science badges for Open Data, Open Materials and Preregistered. The data and materials are openly accessible at https://osf.io/d4c8y/files/osfstorage/636fa9990e715d191ba99e33.

Supplementary data

Supplemental data for this article can be accessed online at https://doi.org/10.1080/15534510.2023.2261178.

Additional information

Funding

We acknowledge financial support by the Max Planck Institute for Human Development and the Walloon Region (FOOD4GUT, project #1318148).