“Reduce Food Waste, Save Money”: Testing a Novel Intervention to Reduce Household Food Waste

By P. van der Werf, J. Seabrook, Jason Gilliland. Environment and Behavior, 2019

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An intervention, which used elements of the theory of planned behavior, was developed and tested in a randomized control trial (RCT) involving households in the city of London, Ontario, Canada. A bespoke methodology involving the direct collection and measurement of food waste within curbside garbage samples of control (n = 58) and treatment households (n = 54) was used to evaluate the effectiveness of the intervention. A comparison of garbage samples before and after the intervention revealed that total food waste in treatment households decreased by 31% after the intervention and the decrease was significantly greater (p = .02) than for control households. Similarly, avoidable food waste decreased by 30% in treatment households and was also significantly greater (p = .05) than for control households. Key determinants of treatment household avoidable food waste reduction included personal attitudes, perceived behavioral control, the number of people in a household, and the amount of garbage set out.

Subfields: Food Science, Industrial and Manufacturing Engineering, Management, Monitoring, Policy and Law

View Paper: https://www.semanticscholar.org/paper/46eb6b730d0d09e4dd0de6e84a17806d660a77d4