Wilson Norbert L W, Just David R, Swigert Jeffery, Wansink Brian
Department of Agricultural Economics and Rural Sociology, Auburn University, Auburn, AL, USA.
Dyson School of Applied Economics and Management, Cornell University, Ithaca, NY, USA.
J Public Health (Oxf). 2017 Jun 1;39(2):366-372. doi: 10.1093/pubmed/fdw043.
Food pantries and food banks are interested in cost-effective methods to encourage the selection of targeted foods without restricting choices. Thus, this study evaluates the effectiveness of nudges toward targeted foods.
In October/November 2014, we manipulated the display of a targeted product in a New York State food pantry. We evaluated the binary choice of the targeted good when we placed it in the front or the back of the category line (placement order) and when we presented the product in its original box or unboxed (packaging).
The average uptake proportion for the back treatment was 0.231, 95% CI = 0.179, 0.29, n = 205, and for the front treatment, the proportion was 0.337, 95% CI = 0.272, 0.406, n = 238 with an odds ratio of 1.688, 95% CI = 1.088, 2.523. The average uptake for the unboxed treatment was 0.224, 95% CI = 0.174, 0.280, n = 255, and for the boxed intervention, the proportion was 0.356, 95% CI = 0.288, 0.429, n = 188 with an odds ratio of 1.923, 95% CI = 1.237, 2.991.
Nudges increased uptake of the targeted food. The findings also hold when we control for a potential confounder. Low cost and unobtrusive nudges can be effective tools for food pantry organizers to encourage the selection of targeted foods.
NCT02403882.
食品救济站和食品银行对采用经济有效的方法来鼓励人们选择特定食品且不限制选择范围很感兴趣。因此,本研究评估了针对特定食品的助推措施的有效性。
2014年10月/11月,我们在纽约州的一个食品救济站对一种特定产品的展示方式进行了操控。我们评估了将该特定商品放置在品类货架的前端或后端(摆放顺序)以及将产品以原装盒或无盒形式呈现(包装方式)时,人们对该特定商品的二选一选择情况。
后端处理的平均选取比例为0.231,95%置信区间 = 0.179, 0.29,n = 205;前端处理的比例为0.337,95%置信区间 = 0.272, 0.406,n = 238,优势比为1.688,95%置信区间 = 1.088, 2.523。无盒处理的平均选取比例为0.224,95%置信区间 = 0.174, 0.280,n = 255;盒装干预的比例为0.356,95%置信区间 = 0.288, 0.429,n = 188,优势比为1.923,95%置信区间 = 1.237, 2.991。
助推措施增加了特定食品的选取量。当我们控制潜在混杂因素时,研究结果依然成立。低成本且不显眼的助推措施可以成为食品救济站组织者鼓励人们选择特定食品的有效工具。
NCT02403882。