Peer Influences in Alcohol and Sexual Violence Among Marines Dyads
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexMale
Age21+
SponsorGeorgia State University
About this trial
The goal of this experimental study is to examine the complex and multifaceted influence of peers on alcohol-involved sexual violence perpetration (ASVP) in U.S. Marine Corps (USMC) men. The specific aims are:
Aim 1: Use ecological momentary assessment (EMA) to examine event-level effects of one's own alcohol use, peer alcohol use, and injunctive norms on ASVP intentions among dyads of Marine men who drink together (n=160 dyads; 320 total participants).
Aim 2: Examine the individual and peer effects on ASVP behavior in an experimental paradigm with a gender x confederate (potential victim) intoxication status design. In-the-moment dyad-peer verbalized encouragement for ASVP ("go cues") will be assessed by qualitatively coding verbalizations during the interaction.
Aim 3: Examine modifiable risk factors on ASVP intentions in vivo (Aim 1; EMA) and ASVP behavior in vitro (Aim 2; experiment) settings.
Participants will complete: 1) an individual orientation session with informed consent, baseline assessment, and EMA demo; 2) 14 days of EMA completed individually; and 3) a dyadic session to complete an experimental paradigm via videoconferencing. All study procedures will be completed in off-duty time as to not interfere with military duties.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Men
Aged 21 or older
Currently serving in the United States Marine Corps (USMC)
Marine dyads must have engaged in heavy episodic drinking (≥5 drinks in less than two hours) together at least twice in the past month
Disqualifiers
The only exclusion criteria is not meeting inclusion criteria.
Trial design
Design model
Parallel
Treatments tested in this trial
Sexual Imposition Task
Other interventionDyads will complete the Sexual Imposition Task and will be randomly assigned to have the individual opportunity to perpetrate sexual violence against another Marine who is (1) a sober man, (2) a sober woman, (3) an intoxicated man, or (4) an intoxicated woman.
Treatment groups
320 Participants
are divided into 4 treatment groupsGroup A: Confederate Group: Intoxicated ManOther 1 intervention
Group B: Confederate Group: Sober ManOther 1 intervention
Group C: Confederate Group: Intoxicated WomanOther 1 intervention
Group D: Confederate Group: Sober WomanOther 1 intervention
Trial outcomes
Primary outcomes
1
Sexual Strategies Survey
Alcohol-involved sexual violence intentions will be assessed using a modified version of the Sexual Strategies Survey. Scores range from 0-168, higher scores indicate higher intentions.
Time frame
For 14 days after enrollment2
Sexual Experiences Survey-Long Form Perpetration - Noncontact Items
Alcohol-involved sexual violence intentions will be assessed using the noncontact items from the Sexual Experiences Survey-Long Form Perpetration (SES-LFP). Scores range from 0-49, higher scores indicate higher intentions.
Time frame
For 14 days after enrollment3
Sexual Imposition Task
Alcohol-involved sexual violence perpetration behavior will be assessed using the Sexual Imposition Task. Choice of film and duration of clip will both be assessed.
Time frame
Experiment at 14 days after enrollmentSponsors and contacts
Click on the lead sponsor to view all of their trials.
Georgia State University
Lead sponsor
Medical University of South Carolina
Collaborator
University of Colorado Health
Collaborator
University of Washington
Collaborator
Source ClinicalTrials.gov