Shop For Success: Experimental Grocery Store Study

NCT04097262 | Completed

• 1 other identifier: GFHNRC155
• Study Type: interventional
• Target: 73
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Overweight; Obesity

Outcome Measures

Primary Outcomes (1)

• Price elasticity of fruit

  Percent change in the amount of fruit purchased (gram weight) for every percent change in the price of a given food.

  Baseline

Secondary Outcomes (1)

• Nutrient density of purchased foods

  Baseline

Study Arms (2)

Own-Price Elasticity

EXPERIMENTAL

The price of fruit will vary (own-price elasticity) while the price of all other foods in the "mock" grocery store will remain constant.

Other: Own-Price Elasticity

Cross-Price Elasticity

EXPERIMENTAL

The price of fruit will remain constant while the price of other foods in the "mock" grocery store will vary (cross-price elasticity).

Other: Cross-Price Elasticity

Interventions

Own-Price Elasticity OTHER

The price of fruit will be 75%, 100%, or 125% of the reference price, but the price of other foods will remain the same.

Own-Price Elasticity

Cross-Price Elasticity OTHER

The price of fruit will remain the same, but the price of other foods will be 75%, 100%, or 125% of the reference price.

Cross-Price Elasticity

Eligibility Criteria

• Age: 18 Years+
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• 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

You may not qualify if:

• 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

Sponsors & Collaborators

• USDA Grand Forks Human Nutrition Research Center: lead

Study Sites (1)

USDA Grand Forks Human Nutrition Research Center

Grand Forks, North Dakota, 58203, United States

Location

MeSH Terms

Conditions

Overweight; Obesity

Condition Hierarchy (Ancestors)

Overnutrition; Nutrition Disorders; Nutritional and Metabolic Diseases; Body Weight; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• James Roemmich, PhD

  USDA Grand Forks Human Nutrition Research Center

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: OTHER
• Intervention Model: FACTORIAL
• Sponsor Type: FED
• Responsible Party: SPONSOR

Model Details: This study will utilize a three factor design, with one between-subject factor and two within-subject factors. The between-subject factor is participation in a federal food assistance program. The within-subject factors are price change condition and price change scenario.

Study Record Dates

• First Submitted: September 18, 2019
• First Posted: September 20, 2019
• Study Start: August 22, 2019
• Primary Completion: March 25, 2020
• Study Completion: March 25, 2020
• Last Updated: February 2, 2022

Record last verified: 2022-01

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)