Marketing and Consumer Behaviour group, Wageningen University and Research, the Netherlands.
Marketing and Consumer Behaviour group, Wageningen University and Research, the Netherlands.
Appetite. 2024 Dec 1;203:107714. doi: 10.1016/j.appet.2024.107714. Epub 2024 Oct 12.
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.
本现场实验研究考察了在真实环境下，增加健康饮料的可得性和经济激励对青春期前儿童实际选择健康饮料的影响。此外，还探讨了青春期前儿童对健康饮料的描述性规范、价格意识以及父母对饮料消费的限制规则的影响。在实验过程中，青春期前儿童可以从总共 8 种饮料的组合中独立购买两种饮料。采用 2x2 被试间设计，操纵健康饮料可得性和经济激励（不健康饮料征税和健康饮料补贴）的增加。共有 305 名 8 至 14 岁的青春期前儿童（M=10.18，SD=1.74）及其各自的一位家长参加了研究。结果表明，当组合中增加了健康饮料的相对可得性时，青春期前儿童更有可能选择健康饮料，并对健康饮料的描述性规范有更高的认知。经济激励和价格意识并没有影响健康饮料的选择。当父母报告对饮料消费有更高的限制规则时，青春期前儿童更不可能选择健康饮料。研究结果表明，增加健康选择的相对可得性可能是支持青春期前儿童做出更健康选择的一种有前途的干预策略。
