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Investigating the conditions for the effectiveness of nudging: Cue-to-action nudging increases familiar vegetable choice
Food Quality and Preference ( IF 4.9 ) Pub Date : 2019-01-01 , DOI: 10.1016/j.foodqual.2018.08.010
V.J.V. Broers , S. Van den Broucke , C. Taverne , O. Luminet

Inulin-type fructans (ITF), which are fibres found in vegetables such as salsify, artichoke and Jerusalem artichoke, are known for their prebiotic capacities and may contribute to preventing obesity. The current study aimed to assess the differential effects of a type-2 and a combined type-1 and -2 nudge to increase the choice for “prebiotic” vegetables at a hot vegetable buffet of a university restaurant, using a nonrandomized intervention study design involving two interventions during five consecutive weeks. An intervention was implemented in which customers were exposed to type-2 nudging in the form of short “cue-to-action” messages placed on their trays and above the hot vegetable buffet, and an additional type-1 nudging intervention was implemented in the form of placing dishes with “prebiotic” vegetables in a more accessible place. On average, 28 servings of hot vegetables were registered on a total of 503 meals sold at the restaurant per day. The beta regression model showed that the “cue-to-action” intervention increased the proportion of customers who used the hot vegetable buffet (p<.001, OR: 1.24), but that the proportion of “prebiotic” vegetables chosen decreased during the “cue-to-action” intervention weeks (p<.01, OR: 0.73). The cue-to-action intervention increased familiar vegetable choice in general and decreased unfamiliar prebiotic vegetable choice. The additional intervention of increasing the accessibility did not change prebiotic vegetable choice. The effectiveness of nudging seems to depend on the specificity and/or the familiarity of the nudged products.

中文翻译:

调查轻推有效性的条件:提示行动轻推增加了熟悉的蔬菜选择

菊粉型果聚糖 (ITF) 是在婆罗门参、朝鲜蓟和菊芋等蔬菜中发现的纤维,以其益生元能力而闻名,可能有助于预防肥胖。目前的研究旨在评估 2 型和 1 型和 -2 型组合轻推在大学餐厅的热蔬菜自助餐中增加“益生元”蔬菜选择的不同效果,使用非随机干预研究设计,涉及在连续五周内进行两次干预。实施了一项干预措施,让顾客接触到以放置在他们的托盘上和热蔬菜自助餐上方的简短“提示行动”信息形式的 2 类轻推,并在客户服务中实施了额外的 1 类轻推干预。将含有“益生元”蔬菜的菜肴放在更容易接近的地方。平均而言,该餐厅每天售出的 503 份餐点中登记了 28 份热蔬菜。Beta 回归模型显示,“提示行动”干预增加了使用热蔬菜自助餐的顾客比例(p<.001,OR:1.24),但选择“益生元”蔬菜的比例在“提示行动”干预周(p<.01,OR:0.73)。提示行动干预总体上增加了熟悉的蔬菜选择,减少了不熟悉的益生元蔬菜选择。增加可及性的额外干预并没有改变益生元蔬菜的选择。轻推的有效性似乎取决于轻推产品的特异性和/或熟悉程度。该餐厅每天售出的 503 份餐点中登记了 28 份热蔬菜。Beta 回归模型显示,“提示行动”干预增加了使用热蔬菜自助餐的顾客比例(p<.001,OR:1.24),但选择“益生元”蔬菜的比例在“提示行动”干预周(p<.01,OR:0.73)。提示行动干预总体上增加了熟悉的蔬菜选择,减少了不熟悉的益生元蔬菜选择。增加可及性的额外干预并没有改变益生元蔬菜的选择。轻推的有效性似乎取决于轻推产品的特异性和/或熟悉程度。该餐厅每天售出的 503 份餐点中登记了 28 份热蔬菜。Beta 回归模型显示,“提示行动”干预增加了使用热蔬菜自助餐的顾客比例(p<.001,OR:1.24),但选择“益生元”蔬菜的比例在“提示行动”干预周(p<.01,OR:0.73)。提示行动干预总体上增加了熟悉的蔬菜选择,减少了不熟悉的益生元蔬菜选择。增加可及性的额外干预并没有改变益生元蔬菜的选择。轻推的有效性似乎取决于轻推产品的特异性和/或熟悉程度。Beta 回归模型显示,“提示行动”干预增加了使用热蔬菜自助餐的顾客比例(p<.001,OR:1.24),但选择“益生元”蔬菜的比例在“提示行动”干预周(p<.01,OR:0.73)。提示行动干预总体上增加了熟悉的蔬菜选择,减少了不熟悉的益生元蔬菜选择。增加可及性的额外干预并没有改变益生元蔬菜的选择。轻推的有效性似乎取决于轻推产品的特异性和/或熟悉程度。Beta 回归模型显示,“提示行动”干预增加了使用热蔬菜自助餐的顾客比例(p<.001,OR:1.24),但选择“益生元”蔬菜的比例在“提示行动”干预周(p<.01,OR:0.73)。提示行动干预总体上增加了熟悉的蔬菜选择,减少了不熟悉的益生元蔬菜选择。增加可及性的额外干预并没有改变益生元蔬菜的选择。轻推的有效性似乎取决于轻推产品的特异性和/或熟悉程度。提示行动干预总体上增加了熟悉的蔬菜选择,减少了不熟悉的益生元蔬菜选择。增加可及性的额外干预并没有改变益生元蔬菜的选择。轻推的有效性似乎取决于轻推产品的特异性和/或熟悉程度。提示行动干预总体上增加了熟悉的蔬菜选择,减少了不熟悉的益生元蔬菜选择。增加可及性的额外干预并没有改变益生元蔬菜的选择。轻推的有效性似乎取决于轻推产品的特异性和/或熟悉程度。
更新日期:2019-01-01
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