NCT03159286

Brief Summary

The proposed research will be the first study to focus on experimentally manipulating both injunctive and descriptive norms on social networking sites in order to elucidate the relationship between alcohol and abstainer displays on social networking sites and subsequent alcohol cognitions, use, and related negative consequences. Based on literature focusing on developmentally appropriate health models for adolescents, the Prototype Willingness Model (PWM) assumes that health-risk behaviors occur either when individuals have developed intentions to engage in a risk behavior (and these intentions vary as a function of attitudes and perceived injunctive norms) or through willingness to engage in risks (which varies as a function of perceived vulnerability to negative consequences, perceived descriptive norms , and prototypes). To fully understand the relationships between alcohol abstaining displays on social networking sites, we will examine 1) the role of descriptive and injunctive abstainer and user norms, when experimentally manipulated with SNS profiles, on willingness and intentions, subsequent alcohol use and related negative consequences among adolescents (age 1 5-20) 2) whether intentions and willingness mediate the relation between our experimental manipulation and subsequent alcohol use and negative consequences and whether 3) individual differences in social influence moderate the effect of the experimental manipulation on intentions, willingness, alcohol use, and negative consequences. We will test these aims by recruiting a community sample of adolescents (N = 300), living in the greater Seattle metropolitan area. Participants will complete a web-based baseline assessment and participate in an in-person experimental manipulation in which they are either assigned to see same-sex social networking site profiles of alcohol abstainers, abstainers +users, or a control condition where neither user or abstainer information will be provided. Immediately after the manipulation, participants will answer a series of questions about the profiles they just viewed and their alcohol-related cognitions. Participants will also complete a one-month in person follow up assessment to test for impacts on intentions, willingness, alcohol use, and related negative consequences. Additionally, individual differences in social influence will be examined as possible moderators o f the relationship between SNS-portrayed norms and our primary outcomes. This study is both significant and innovative in that it uses a theoretical perspective to experimentally test the impact of alcohol content, in particular abstainer norms, on Facebook on adolescent alcohol use and related cognitions. The results have the potential to inform preventative interventions while addressing NIH priorities.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
306

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Mar 2017

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

March 22, 2017

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

May 16, 2017

Completed
2 days until next milestone

First Posted

Study publicly available on registry

May 18, 2017

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2017

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2018

Completed
Last Updated

November 21, 2019

Status Verified

November 1, 2019

Enrollment Period

6 months

First QC Date

May 16, 2017

Last Update Submit

November 20, 2019

Conditions

Outcome Measures

Primary Outcomes (3)

  • Change in Willingness and Intentions to Use Alcohol

    Assesses willingness to use alcohol and intentions to use alcohol at Baseline, Post-Manipulation, and 1-Month Follow-Up assessments.

    Baseline, Post-Manipulation and 1-Month Follow-Up time points

  • Change in Self-Reported Alcohol Use

    Assesses self-reported alcohol use (using the Daily Drinking Questionnaire and Quantity Frequency measures) at Baseline and 1-Month Follow-Up assessments.

    Baseline and 1-Month Follow-Up time points

  • Change in Alcohol-Related Negative Consequences

    Assesses alcohol-related negative consequences (using the Young Adult Alcohol Consequences Questionnaire) at Baseline and 1-Month Follow Up.

    Baseline and 1-Month Follow-Up time points

Study Arms (3)

Abstainer

EXPERIMENTAL

Participants view social networking site profiles with alcohol content that references abstaining from alcohol use.

Behavioral: Abstainer

Abstainer + User

EXPERIMENTAL

Participants view social networking site profiles with alcohol content that references both abstaining from alcohol use and using alcohol.

Behavioral: Abstainer + User

Control

EXPERIMENTAL

Participants view social networking site profiles with no alcohol content.

Behavioral: Control

Interventions

AbstainerBEHAVIORAL

Participants view social networking site profiles with alcohol content referencing abstaining from alcohol use.

Abstainer

Participants view social networking site profiles with alcohol content referencing abstaining from alcohol use and using alcohol.

Abstainer + User
ControlBEHAVIORAL

Participants view social networking site profiles with no alcohol content.

Control

Eligibility Criteria

Age15 Years - 20 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Must be between 15 and 20 years old
  • Must reside within Seattle area
  • Must use alcohol at least once in the last 6 months
  • Must have valid email address
  • Must have active profile on social networking site (Facebook, Instagram and/or Snapchat)
  • Regular access to the web or personal mobile phone
  • Willing to come to office for the experimental manipulation and post-manipulation assessment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Center for the Study of Health and Risk Behaviors

Seattle, Washington, 98105, United States

Location

MeSH Terms

Conditions

Underage DrinkingRisk-Taking

Condition Hierarchy (Ancestors)

Adolescent BehaviorBehaviorAlcohol DrinkingDrinking Behavior

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Participants will not know which intervention they are in during the course of the study. They will be debriefed at the end of the study and informed which condition they were a part of.
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Affiliate Associate Professor

Study Record Dates

First Submitted

May 16, 2017

First Posted

May 18, 2017

Study Start

March 22, 2017

Primary Completion

October 1, 2017

Study Completion

April 30, 2018

Last Updated

November 21, 2019

Record last verified: 2019-11

Data Sharing

IPD Sharing
Will not share

A select number of researchers will have access to unidentified participant data at the close of the study.

Locations