Reducing UV Exposure to Prevent Skin Cancer: Message Development & Testing

November 13, 2018 updated by: Karen Glanz, University of Pennsylvania
Phase 3b of the research will be a laboratory experiment that uses an experimental and analytic design that is parallel to that used in Phase 3a, the online experiment. The primary objective of Phase 3b is to assess physiological response (i.e., eye tracking) to different message appeals of the audio-visual messages used in Phase 3a on respondents' behavioral intentions and UV-related behavioral choices post-exposure. Including time for preparation, viewing, and removal of the monitoring equipment, the message viewing session will take about 45 minutes per session.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

3595

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • CIRNA Lab

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 49 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 18-49 year old non-Hispanic white (NHW) adults
  • OR 18-25 year old NHW females who have tanned indoors in the past 12 months

Exclusion Criteria:

-

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Outdoor Sun Exposure Behavior

A convenience sample of white, English-speaking adults ages 18 to 49 will be recruited via online advertisements in Philadelphia and the surrounding region (within a 30 mile radius). The investigators will recruit 120 adults to test outdoor UV exposure messages. The investigators will quota sample to ensure representation across age and gender groups.

The inclusion criteria are that adults must be white, must be between 18-49 years old and must speak English.

Participants will provide informed consent and complete a short background questionnaire about usual sun exposure and protection behaviors and demographics. Next, each participant will be seated in a room to view the audio-visual media messages. Eye-tracking equipment running Paradigm (Perception Research Systems Incorporated) for stimuli presentation will be calibrated to the participant. Subjects will be seated at a desk in front of a computer monitor, keyboard and mouse setup. Each participant will view messages with different emotional appeals related to outdoor sun exposure (seeking shade, covering up, using sunscreen, and multiple behaviors). Messages will be shown in random order, with each message interspersed by a 30 second baseline screen consisting of black background and white, centered plus sign. The last 10 seconds of each preceding the 30-second baseline screen will be used to establish physiologic baseline to minimize carry-over effects of the preceding message.
Experimental: Indoor Tanning Behavior

A convenience sample of white, English-speaking females ages 18 to 25 will be recruited via online advertisements and flyers in Philadelphia and the surrounding region (within a 30 mile radius). The investigators will recruit 60 adults to test indoor tanning messages.

The inclusion criteria are that adults must be white, female, must be between 18-25 years old, must have used an indoor tanning bed at least once in the past 12 months, and must speak English.

Upon arrival, participants will provide informed consent and complete a short background questionnaire about usual indoor tanning, sun exposure and protection behaviors, and demographics. Next, each participant will be seated in a room to view the audio-visual media messages. Eye-tracking equipment running Paradigm (Perception Research Systems Incorporated) for stimuli presentation will be calibrated to the participant. Subjects will be seated at a desk in front of a typical computer monitor, keyboard and mouse setup. Each participant will view messages with each type of target behavior (freedom, health risk, appearance)). Messages will be shown in random order, with each message interspersed by a 30 second baseline screen consisting of black background and white, centered plus sign. The last 10 seconds of each preceding the 30-second baseline screen will be used to establish physiologic baseline to minimize carry-over effects of the preceding message.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Laboratory Survey
Time Frame: Baseline
Questionnaire measures will be completed using an iPad with Qualtrics software. Participants will be asked to evaluate each message for its argument strength, emotional appeal, and themes; participants will also be asked about their intentions and beliefs related to each behavior. The research technician will not initiate a conversation with the participant during the experimental session except to give instructions.
Baseline
Follow-up Survey
Time Frame: Two weeks post baseline Laboratory Survey
Two weeks after the completed laboratory session, participants will be emailed a link to complete a follow-up survey. The survey will ask about participants' ability to recall the messages, attitudes regarding outdoor sun protection behaviors, actual behaviors in the past two weeks, whether the participants have used or will use the product they selected, and whether the participants have discussed the messages with anyone else.
Two weeks post baseline Laboratory Survey

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Measure of Behavioral Intent
Time Frame: Baseline
Upon finishing the experiment, respondents will be offered a choice of one of four "thank you" gifts of comparable value: sunscreen, hand sanitizer, and moisturizer with or without SPF protection. The experimenter will unobtrusively record the subjects' selections.
Baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Collaborators

Investigators

  • Principal Investigator: Karen Glanz, PhD, MPH, University of Pennsylvania

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 29, 2017

Primary Completion (Actual)

September 28, 2017

Study Completion (Actual)

September 28, 2017

Study Registration Dates

First Submitted

June 21, 2017

First Submitted That Met QC Criteria

June 26, 2017

First Posted (Actual)

June 28, 2017

Study Record Updates

Last Update Posted (Actual)

November 14, 2018

Last Update Submitted That Met QC Criteria

November 13, 2018

Last Verified

November 1, 2018

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 821348

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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