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Monitoring a meat-free pledge with smartphones: An experimental study

[journal article]

Piazza, Jared
Gregson, Rebecca
Kordoni, Anastasia
Pfeiler, Tamara M.
Ruby, Matthew B.
Ellis, David A.
Sahin, Ensu
Reith, Maren

Abstract

Pledges are a popular strategy to encourage meat reduction, though experimental studies of their efficacy are lacking. Three-hundred and twenty-five participants from three different countries (UK, Germany, Australia) were randomly assigned to pledge 28 days meat-free or not, and their behavior was ... view more

Pledges are a popular strategy to encourage meat reduction, though experimental studies of their efficacy are lacking. Three-hundred and twenty-five participants from three different countries (UK, Germany, Australia) were randomly assigned to pledge 28 days meat-free or not, and their behavior was tracked via smartphones. Participants answered daily surveys regarding their eating behavior, meat cravings, and shared photos of their meals. Baseline data was collected prior to the pledge, after the 28 days, and one-month post-intervention. Participants assigned to the pledge condition ate less meat across the 28 days, compared to control participants. Meat reductions, observed at outtake, did not endure one-month post-intervention. Overall, German participants ate the least amount of meat, and showed the sharpest decrease in consumption when pledging. Meat cravings tended to increase among pledgers, relative to control participants. Pledgers who reported high starting intentions and conflict about meat tended to eat less meat and reported fewer cravings. All participants reported reduced meat-eating justifications one-month post-intervention. These findings provide experimental evidence that pledges can encourage meat consumers to reduce their intake, though additional mechanisms are needed to sustain commitments.... view less

Keywords
vegetarianism; cell phone; experience; Great Britain; Federal Republic of Germany; Australia; eating behavior; consumption behavior

Classification
Interactive, electronic Media
Ecology, Environment

Free Keywords
meat reduction; pledging; conflicted omnivores; smartphones; experience sampling; ZIS 76

Document language
English

Publication Year
2022

Page/Pages
p. 1-11

Journal
Appetite : determinants and consequences of eating and drinking, 168 (2022)

DOI
https://doi.org/10.1016/j.appet.2021.105726

ISSN
0195-6663

Status
Published Version; peer reviewed

Licence
Creative Commons - Attribution-Noncommercial-No Derivative Works 4.0


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© 2007 - 2025 Social Science Open Access Repository (SSOAR).
Based on DSpace, Copyright (c) 2002-2022, DuraSpace. All rights reserved.