Sugar Sweetened Beverage Labeling Support

NCT ID: NCT02947802

Last Updated: 2023-10-04

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 400 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2016-10-31
• Study Completion Date: 2016-11-30

Brief Summary

This is an online survey assessing consumer support for different labeling policies related to sugar sweetened beverages. The investigators will present consumers with three labels that are being considered for sugar sweetened beverages: a calorie label, a text warning label that says "Warning drinking beverages with added sugar(s) can lead to health problems like obesity, diabetes and tooth decay" and a graphic warning label that includes graphic images to correspond with each of the health problems listed with the text warning. The investigators will ask participants their support for each label. The investigators will also see if support for the labels change after learning of the effectiveness of these labels. The investigators will share the results of a recent field study that suggested calorie and textual warning labels had no influence on the purchasing of sugar sweetened beverages while the graphic label decreased purchasing by 11 percent.

Conditions

Consumer Behavior

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: BASIC_SCIENCE
• Blinding Strategy: SINGLE

Study Groups

Consumer Support

Participants will be presented with three labels: a calorie label, a textual warning label and a textual warning label with corresponding graphic images and will be asked to rate their support for each label on a 1 (not at all) to 7 (a great deal) scale.

Group Type: EXPERIMENTAL

Control condition

Intervention Type: OTHER

In one of our parallel assigned conditions participants will receive no additional information and be asked to rate their support for the label.

Consumer Support with Effectiveness Info

Participants will be presented with three labels: a calorie label, a textual warning label and a textual warning label with corresponding graphic images and will be asked to rate their support for each label on a 1 (not at all) to 7 (a great deal) scale. Participants will also receive effectiveness information- how each label influenced the purchasing of sugar sweetened beverages- from a recent field experiment.

Group Type: EXPERIMENTAL

Effectiveness of Labels in Reducing Purchasing of Sugar Sweetened Beverages

Intervention Type: OTHER

In one of our parallel assigned conditions participants will receive additional information (e.g., an intervention) of effectiveness information. These consumers will learn how effective these labels were in reducing the purchasing of sugar sweetened beverages in a recent study.

Interventions

Effectiveness of Labels in Reducing Purchasing of Sugar Sweetened Beverages

In one of our parallel assigned conditions participants will receive additional information (e.g., an intervention) of effectiveness information. These consumers will learn how effective these labels were in reducing the purchasing of sugar sweetened beverages in a recent study.

Intervention Type: OTHER

Control condition

In one of our parallel assigned conditions participants will receive no additional information and be asked to rate their support for the label.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• The investigators will recruit a nationally representative sample using ClearVoice, a company that recruits online survey takers.

Exclusion Criteria

-

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Harvard University

OTHER

Sponsor Role: lead

Responsible Party

Leslie John

Principal Investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Harvard University

Cambridge, Massachusetts, United States

Countries

United States

References

Donnelly GE, Zatz LY, Svirsky D, John LK. The Effect of Graphic Warnings on Sugary-Drink Purchasing. Psychol Sci. 2018 Aug;29(8):1321-1333. doi: 10.1177/0956797618766361. Epub 2018 Jun 18.

Reference Type: DERIVED

PMID: 29912624 (View on PubMed)

Study Documents

Document Type: Study Instrument (Online Survey)

This is the online survey participants will complete.

View Document

Other Identifiers

IRB16-1585

Identifier Type: -

Identifier Source: org_study_id