NCT02947802

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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
400

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2016

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2016

Completed
25 days until next milestone

First Submitted

Initial submission to the registry

October 26, 2016

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 28, 2016

Completed
4 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2016

Completed
Last Updated

October 4, 2023

Status Verified

October 1, 2023

Enrollment Period

1 month

First QC Date

October 26, 2016

Last Update Submit

October 3, 2023

Conditions

Consumer Behavior

Outcome Measures

Primary Outcomes (1)

  • Rate Support of a Label on a 1 (not at all) to 7 (a great deal) Scale.

    Participants will rate their support of the label on a 1 (not at all) to 7 (a great deal)

    Immediately following the presentation of the labels.

Study Arms (2)

Consumer Support

EXPERIMENTAL

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.

Other: Control condition

Consumer Support with Effectiveness Info

EXPERIMENTAL

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.

Other: Effectiveness of Labels in Reducing Purchasing of Sugar Sweetened Beverages

Interventions

Effectiveness of Labels in Reducing Purchasing of Sugar Sweetened BeveragesOTHER

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.

Consumer Support with Effectiveness Info
Control conditionOTHER

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

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Harvard University

Cambridge, Massachusetts, 02163, United States

Location

Related Publications (1)

  • 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.

    PMID: 29912624DERIVED

MeSH Terms

Conditions

Consumer Behavior

Condition Hierarchy (Ancestors)

Behavior

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

October 26, 2016

First Posted

October 28, 2016

Study Start

October 1, 2016

Primary Completion

November 1, 2016

Study Completion

November 1, 2016

Last Updated

October 4, 2023

Record last verified: 2023-10

Locations

US(1)