Effects of increased availability and economic incentives on preadolescents’ healthier beverages choices: An experimental study

IF 4.6 2区医学 Q1 BEHAVIORAL SCIENCES

Appetite Pub Date : 2024-10-12 DOI:10.1016/j.appet.2024.107714

Roselinde L. van Nee, Femke Mulder, Ellen van Kleef, Hans C.M. van Trijp

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Abstract

This field experimental study examined how increased availability and economic incentives for healthier beverages affect preadolescents' actual healthier beverage choices in a real-world setting. In addition, the impact of preadolescents’ descriptive norm towards healthier beverages, price awareness and parental restrictive rules regarding beverage consumption were explored. During the experiment, preadolescents could independently buy two beverages from an assortment with a total of eight beverages. A 2x2 between-subjects design was used, manipulating the presence of increased availability of healthier beverages and economic incentives (taxes for unhealthier beverages and subsidies for healthier beverages). A total of 305 preadolescents between 8 and 14 years old (M = 10.18, SD = 1.74) participated, each accompanied by one of their respective parents. Results showed that preadolescents were more likely to choose healthier beverages and perceived a higher descriptive norm towards healthier beverages when the assortment included increased relative availability of healthier beverages. Economic incentives and price awareness did not impact healthier beverage choices. Preadolescents were less likely to choose healthier beverages when parents reported higher levels of restrictive rules regarding beverage consumption. Results of the study suggest that increasing relative availability of healthier options could be a promising intervention strategy to support preadolescents in making healthier choices.

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增加供应量和经济激励对青少年选择更健康饮料的影响：一项实验研究。

这项现场实验研究考察了在现实环境中，健康饮料供应量的增加和经济激励措施如何影响学龄前儿童对健康饮料的实际选择。此外，还探讨了学龄前儿童对健康饮料的描述性规范、价格意识和父母对饮料消费的限制性规定的影响。在实验过程中，青少年可以从总共八种饮料中独立购买两种饮料。实验采用了 2x2 受试者间设计，操纵了健康饮料供应量的增加和经济激励（对不健康饮料征税和对健康饮料提供补贴）的存在。共有 305 名 8 至 14 岁的学龄前儿童（中位数 = 10.18，标准差 = 1.74）参加了这项研究，每个人都有一名家长陪同。结果表明，当饮料种类中健康饮料的相对供应量增加时，学龄前儿童更有可能选择更健康的饮料，并对健康饮料有更高的描述性标准。经济激励和价格意识并不影响健康饮料的选择。如果父母对饮料消费的限制性规定较多，青少年就不太可能选择更健康的饮料。研究结果表明，增加更健康选择的相对可得性可能是支持青少年做出更健康选择的一种有前途的干预策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Appetite 医学-行为科学

CiteScore

9.10

自引率

11.10%

发文量

566

审稿时长

13.4 weeks

期刊介绍： Appetite is an international research journal specializing in cultural, social, psychological, sensory and physiological influences on the selection and intake of foods and drinks. It covers normal and disordered eating and drinking and welcomes studies of both human and non-human animal behaviour toward food. Appetite publishes research reports, reviews and commentaries. Thematic special issues appear regularly. From time to time the journal carries abstracts from professional meetings. Submissions to Appetite are expected to be based primarily on observations directly related to the selection and intake of foods and drinks; papers that are primarily focused on topics such as nutrition or obesity will not be considered unless they specifically make a novel scientific contribution to the understanding of appetite in line with the journal's aims and scope.