Evaluating the Effectiveness of an Ultraprocessed Food Warning Label in Chile
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 3,645
- 试验地点
- 2
- 主要终点
- Purchase intentions, mean score
研究概览
简要总结
The goal of this experiment is to examine the effects of a warning label signaling that a product is ultraprocessed among a sample of Chilean parents. The main questions this experiment aims to answer are:
Do ultraprocessed warning labels on their own impact product purchase intentions?
Do ultraprocessed warning labels impact product purchase intentions in the presence of nutrient warning labels?
Do ultraprocessed warning labels help more consumers identify ultraprocessed foods?
Participants will be randomly assigned to a control arm or an ultraprocessed warning label arm. In both arms, products will carry nutrient warning labels, which are Chile's current policy. Participants will see three similar products, all of which will be ultraprocessed: one not high in any nutrients of concern, one high in sodium, and one high in sodium and saturated fat. For each product, participants will rate their purchase intentions and indicate whether they believe the product to be ultraprocessed. Researchers will compare results across arms.
详细描述
Participants will complete an online randomized experiment programmed in Qualtrics. After providing informed consent, participants will be randomly assigned to one of two arms: control (i.e., no ultraprocessed warning label) arm or ultraprocessed warning label arm. In both arms, products will carry nutrient warning labels, which are Chile's current policy.
In random order, participants will see three similar mock bags of potato chips. All products seen will be ultraprocessed, and thus carry an ultraprocessed warning label in the ultraprocessed warning label arm. Additionally, one of the products will not be high in any nutrients of concern, one product will be high in sodium, and one product will be high in sodium and saturated fat. For each product, participants will rate their purchase intentions, perceived healthfulness, and indicate whether they believe the product to be ultraprocessed.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 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 or older
- •Parent or guardian of child between 2-14 years old who has never been diagnosed with diabetes, high blood sugar, pre-diabetes or insulin resistance
- •Residing in Chile
排除标准
- •Less than 18 years old
- •Not parent or guardian of child between 2-14 years old who has never been diagnosed with diabetes, high blood sugar, pre-diabetes or insulin resistance
- •Not residing in Chile
研究组 & 干预措施
Control
干预措施: Control (Behavioral)
Ultraprocessed warning label
干预措施: Ultraprocessed warning label (Behavioral)
结局指标
主要结局
Purchase intentions, mean score
时间窗: During exposure to intervention (i.e., study stimuli), assessed during one-time online 10-minute survey.
How likely the participant would be to buy products will be measured by survey. Response options will be on a 5-point scale from "very unlikely" (coded as 1) to "very likely" (coded as 5), with higher scores representing a higher likelihood of buying products.
Correct identification of products as ultraprocessed
时间窗: During exposure to intervention (i.e., study stimuli), assessed during one-time online 10-minute survey.
Correct identification of products as ultraprocessed will be measured by survey. Response will be coded in a dichotomous 0-1 range, where 1 indicates that the participant correctly identified the products as ultraprocessed and 0 indicates that the participant did not correctly identify the products as ultraprocessed.
次要结局
- Perceived product healthfulness, mean score(During exposure to intervention (i.e., study stimuli), assessed during one-time online 10-minute survey.)