Peer Influences in Alcohol and Sexual Violence Among Marines Dyads

Recruiting now

Conditions studied: Peer Influence, Alcohol-Involved Sexual Violence Perpetration

In brief

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.

Key facts

Study ID

NCT07256275

Run by

Georgia State University

People needed

320

Starts

2026-03-18

Expected to finish

2030-08-31

Last updated by the study team

2026-03-19

Who can join

Age: 21 and older. Sex: male. Healthy volunteers: not accepted.

You may qualify if…

• 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
• Marine dyads must rate their peer at a minimum of "somewhat important" on the Important People Interview.

You may not qualify if…

• The only exclusion criteria is not meeting inclusion criteria.

Where it is running

• Georgia State University — Atlanta, Georgia, United States (enrolling)

Full record on ClinicalTrials.gov

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