"Make It Fresh, For Less" Supermarket Pilot Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 401
- 主要终点
- Change in weekly purchases of recipe components (Selection of items bundled with each recipe) during four, 4-week promotional campaigns
研究概览
简要总结
The purpose of this study is to examine the impact of environmental modifications (choice architecture and a marketing campaign) in combination with weekly text messages on purchases of foods made by parents shopping in a large supermarket.
详细描述
The "Make It Fresh, For Less" Supermarket Pilot Study is a supermarket-based intervention developed by the Harvard T.H. Chan School of Public Health in collaboration with the nonprofit organization ChopChop Magazine (chopchopmagazine.org) and a large Northeastern supermarket chain. A promotional campaign advertising low-cost, kid-friendly meals was piloted in one store selected by the supermarket partner, with promotions rotating every 4 weeks during a 16-week intervention period. Parent shoppers were recruited (n=401) at the store and given a study loyalty card to track their transactions. At the start of the intervention, half of the participants were additionally randomized to receive weekly behavioral messages via text message or email. Supermarket purchases were assessed at baseline, during the 16-week intervention, and up to 6-weeks post-intervention.
Primary Aim 1: to examine the impact of a choice architecture intervention in combination with a promotional campaign on food purchases of parents shopping in a large supermarket. It is hypothesized that there will be an increase in selection of foods targeted by the promotional campaign when physical modifications are made.
Primary Aim 2: to examine the impact of weekly behavioral messages in combination with an environmental change intervention on food purchases of parents shopping in a large supermarket. It is hypothesized that there will be a greater increase in selection of foods targeted by the promotional campaign among participants receiving the messages compared to participants exposed to the environmental change intervention alone.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •18 years of age or older
- •English-speaking
- •Live with a child 18 years of age or younger
- •Do more than 50% of shopping at the study store
- •Primary shopper in the household
排除标准
- 未提供
研究组 & 干预措施
environmental change
Shoppers were exposed to modifications to the supermarket environment to encourage selection of low-cost, kid-friendly meals
干预措施: environmental change (Behavioral)
environmental change and messaging
Shoppers were exposed to modifications to the supermarket environment and weekly messages via text or email to encourage selection of low-cost, kid-friendly meals
干预措施: environmental change (Behavioral)
environmental change and messaging
Shoppers were exposed to modifications to the supermarket environment and weekly messages via text or email to encourage selection of low-cost, kid-friendly meals
干预措施: messaging (Behavioral)
结局指标
主要结局
Change in weekly purchases of recipe components (Selection of items bundled with each recipe) during four, 4-week promotional campaigns
时间窗: Baseline, during intervention (4 weeks each) and up to 6 weeks post-intervention
Purchase of recipe ingredients
次要结局
- Differential change in weekly purchases of recipe components by SNAP-eligibility(Baseline, during intervention (4 weeks each) and up to 6 weeks post-intervention)
- Adoption of intervention (self-reported survey measures)(Up to 6 weeks post-intervention)
- Change in weekly purchases of other food categories (substitution of recipe ingredients for other foods)(Baseline, during intervention (4 weeks each) and up to 6 weeks post-intervention)
- Differential change in weekly purchases of other food groups (substitution) by SNAP-eligibility(Baseline, during intervention (4 weeks each) and up to 6 weeks post-intervention)
- Recall of intervention (self-reported survey measures)(Up to 6 weeks post-intervention)
- Reach of intervention (direct observation measures)(During intervention (4 weeks each))
- Fidelity to intended intervention (direct observation measures)(During intervention (4 weeks each))
- Acceptability of intervention (self-reported survey measures)(Up to 6 weeks post-intervention)
研究者
Eric B. Rimm
Professor of Epidemiology and Nutrition
Harvard School of Public Health (HSPH)