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Predicting household food waste reduction using an extended theory of planned behaviour

journal contribution
posted on 2023-06-08, 21:34 authored by Ella Graham-Rowe, Donna JessopDonna Jessop, Paul Sparks
Identifying the antecedents of household food waste reduction is an important step in the development of effective and efficient interventions. This prospective study tested the utility of applying an extended theory of planned behaviour (TPB) model to household food waste reduction. At baseline, participants (N = 279) completed a questionnaire designed to measure the following cognitive constructs derived from the extended TPB model: intention, attitude, subjective norm, perceived behavioural control, self-identity, anticipated regret, moral norm and descriptive norm. At follow-up, participants (N = 204) completed a questionnaire assessing their household food waste behaviour. The extended TPB model accounted for a substantial amount (64%) of the variance in intention, with attitude, subjective norm, perceived behavioural control, self-identity and anticipated regret emerging as significant linear predictors. Furthermore intention significantly predicted the likelihood that participants had reduced their household fruit and vegetable waste at follow-up; however, the amount of variance in behaviour accounted for by the TPB model was relatively small (5%). Results demonstrate the utility of applying an extended theory of planned behaviour model to predict motivation and – to a lesser extent – behaviour, in the context of household fruit and vegetable waste reduction.

History

Publication status

  • Published

File Version

  • Published version

Journal

Resources, Conservation and Recycling

ISSN

0921-3449

Publisher

Elsevier

Volume

101

Page range

194-202

Department affiliated with

  • Psychology Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2015-07-10

First Compliant Deposit (FCD) Date

2015-07-10

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