TY - JOUR
T1 - The use of feedback to enhance environmental outcomes
T2 - A randomised controlled trial of a food waste scheme
AU - Nomura, Hisako
AU - John, Peter C.
AU - Cotterill, Sarah
N1 - Funding Information:
aKyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan; bSchool of Social Sciences, University of Manchester, Oxford Road, Manchester M13 9PL, UK; cManchester Academic Health Science Centre, Research & Development Support Unit, Salford Royal NHS Foundation Trust, The University of Manchester, Stott Lane, Salford M6 8HD, UK
PY - 2011
Y1 - 2011
N2 - Food waste makes up about 20% of general waste that goes to the landfill every year in the UK. Encouraging the public to engage in food waste recycling and separating more food from general waste could help local governments promote a better environment. Appeals to collective norms, by giving people feedback on their street's food waste recycling rate compared with others, could promote recycling. To test this, we carried out a randomised controlled trial in Oldham, Greater Manchester. We randomly assigned 318 streets to a treatment and control group. Households in the treatment group were sent two postcards that provided feedback on how their street performed on food waste recycling compared with the average for their neighbourhood. Participation in the food waste scheme was measured for all households on three occasions: at baseline, and after the receipt of the first- and second-feedback cards. We estimated the effect of our treatment using cross-classified multilevel logistic regression models, controlling for baseline, street size and the interaction of treatment and baseline. We show that feedback had a positive effect on the food waste participation with an effect size of 2.8% compared with a control group that received no treatment.
AB - Food waste makes up about 20% of general waste that goes to the landfill every year in the UK. Encouraging the public to engage in food waste recycling and separating more food from general waste could help local governments promote a better environment. Appeals to collective norms, by giving people feedback on their street's food waste recycling rate compared with others, could promote recycling. To test this, we carried out a randomised controlled trial in Oldham, Greater Manchester. We randomly assigned 318 streets to a treatment and control group. Households in the treatment group were sent two postcards that provided feedback on how their street performed on food waste recycling compared with the average for their neighbourhood. Participation in the food waste scheme was measured for all households on three occasions: at baseline, and after the receipt of the first- and second-feedback cards. We estimated the effect of our treatment using cross-classified multilevel logistic regression models, controlling for baseline, street size and the interaction of treatment and baseline. We show that feedback had a positive effect on the food waste participation with an effect size of 2.8% compared with a control group that received no treatment.
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U2 - 10.1080/13549839.2011.586026
DO - 10.1080/13549839.2011.586026
M3 - Article
AN - SCOPUS:84855740026
VL - 16
SP - 637
EP - 653
JO - Local Environment
JF - Local Environment
SN - 1354-9839
IS - 7
ER -