Shop For Success: Experimental Grocery Store Study
2022年1月18日 更新者：USDA Grand Forks Human Nutrition Research Center
Price Elasticity of Fruit (Shop For Success)
The purpose of this research is to study how the price of foods affects food buying choices at the grocery store.
The researchers are interested in this topic because the price of foods can have a big impact on what people choose to buy and prices change over time.
The researchers are doing this study to see how changes in food prices affect what foods mothers choose for their families.
研究概览
详细说明
It is well known that the price of a given food affects the amount of that food an individual purchases.
However, little is known about how specific groups, such as overweight/obese and those with lower incomes, change their food purchasing decisions depending on food price changes.
Evidence has shown that these groups have lower quality diets and worse health outcomes than their normal weight and higher income counterparts.
Therefore, it is important to gain a better understanding of how food price changes affect purchasing decisions among these populations in order to develop targeted nutrition interventions to improve their diet quality.
To investigate this, the researchers will create a laboratory-based grocery store, in which pictures of foods will be used to substitute actual food.
Food prices will be indicated on each picture.
Participants will be given play money and a budget, and ask them to "purchase" foods in the mock grocery store.
The price of food will be changed throughout the study to investigate how participants change their purchasing decisions based on these price changes.
研究类型
介入性
注册 (实际的)
73
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
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North Dakota
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Grand Forks、North Dakota、美国、58203
- USDA Grand Forks Human Nutrition Research Center
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参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 及以上 (成人、年长者)
接受健康志愿者
是的
有资格学习的性别
女性
描述
Inclusion Criteria:
- Have at least one child up to 18 years of age residing in the household
- Primary grocery shopper for the household
- No health conditions or food practices that substantially limit food choice
- Not currently pregnant
- Consent to the study design
Exclusion Criteria:
- Male
- < 18 years of age
- Not a mother, or children not living with subject in their household
- No children below the age of 18 years of age
- Not the primary grocery shopper for their household
- Health conditions or food practices that substantially limit food choice
- Currently pregnant
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：其他
- 分配：随机化
- 介入模型：阶乘赋值
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
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实验性的：Own-Price Elasticity
The price of fruit will vary (own-price elasticity) while the price of all other foods in the "mock" grocery store will remain constant.
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The price of fruit will be 75%, 100%, or 125% of the reference price, but the price of other foods will remain the same.
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实验性的：Cross-Price Elasticity
The price of fruit will remain constant while the price of other foods in the "mock" grocery store will vary (cross-price elasticity).
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The price of fruit will remain the same, but the price of other foods will be 75%, 100%, or 125% of the reference price.
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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
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Price elasticity of fruit
大体时间：Baseline
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Percent change in the amount of fruit purchased (gram weight) for every percent change in the price of a given food.
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Baseline
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
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购买食物的营养密度
大体时间：基线
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购买低营养密度食品与购买高营养密度食品的比率
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基线
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (实际的)
2019年8月22日
初级完成 (实际的)
2020年3月25日
研究完成 (实际的)
2020年3月25日
研究注册日期
首次提交
2019年9月18日
首先提交符合 QC 标准的
2019年9月18日
首次发布 (实际的)
2019年9月20日
研究记录更新
最后更新发布 (实际的)
2022年2月2日
上次提交的符合 QC 标准的更新
2022年1月18日
最后验证
2022年1月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.
Own-Price Elasticity的临床试验
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Lithuanian University of Health Sciences完全的