Evidence map›Paper›PMID 39667050›Full record

ArticleAddictive behaviors2025

Event-level effects of alcohol, cannabis, and simultaneous alcohol and cannabis use on bystander intentions in response to hypothetical situations among college women.

Ruschelle M Leone, Michelle Haikalis, Tiffany L Marcantonio, Amanda K Gilmore, Cynthia Stappenbeck, Nancy P Barnett, Kevin M Gray

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Addictive behaviors, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Ruschelle M LeoneDepartment of Psychiatry, University of Colorado Anschutz Medical Campus, United States. Electronic address: Ruschelle.leone@cuanschutz.edu.
Michelle HaikalisDepartment of Behavioral and Social Sciences, School of Public Health, Brown University, United States. Electronic address: michelle_haikalis@brown.edu.
Tiffany L MarcantonioDepartment of Health Science, The University of Alabama, United States; Kinsey Institute for Research in Sex, Gender, and Reproduction, Indiana University, United States. Electronic address: tlmarcantonio@ua.edu.
Amanda K GilmoreDepartment of Health Policy & Behavioral Sciences, School of Public Health, Georgia State University, United States. Electronic address: agilmore12@gsu.edu.
Cynthia StappenbeckDepartment of Psychology, College of Arts & Sciences, Georgia State University, United States. Electronic address: cstappenbeck@gsu.edu.
Nancy P BarnettDepartment of Behavioral and Social Sciences, School of Public Health, Brown University, United States. Electronic address: nancy_barnett@brown.edu.
Kevin M GrayDepartment of Psychiatry and Behavioral Sciences, College of Medicine, Medical University of South Carolina, United States. Electronic address: graykm@musc.edu.

Funding

Event-Level Analysis of Alcohol Use and Bystander Behavior in Social Drinking Contexts: A Novel Approach to Inform Alcohol-Related Sexual Assault PreventionK08AA029181 · NIAAA · BROWN UNIVERSITY · PI Michelle Haikalis · 2022 to 2026
$973k
Development of an Alcohol, Cannabis, and Sexual Assault Risk Reduction Program for High Risk College WomenK01AA028844 · NIAAA · UNIVERSITY OF COLORADO DENVER · PI LEONE, RUSCHELLE MARIE · 2021 to 2025
$926k
NIAAA NIH HHS K01 AA028844NIAAA NIH HHS K08 AA029181NIAAA NIH HHS L30 AA028649NIAAA NIH HHS L30 AA031129
6 · The paper itself

Abstract

Bystanders can play an important role in preventing alcohol-related harm (e.g., unintentional injury) or sexual aggression. While the impact of one's own acute alcohol intoxication on sexual aggression bystander intervention has been explored, less is known about how alcohol impacts the ability to intervene in alcohol-related harm. Further, scant research has examined one's own cannabis or simultaneous alcohol and cannabis use (i.e., using alcohol and cannabis at the same time so that their effects overlap) on bystander intervention. The present study employed an ecological momentary assessment (EMA) to test the acute effects of alcohol and cannabis on intentions to intervene in (1) alcohol-related harm and (2) sexual aggression. Participants were 81 U.S. college women aged 18 to 24 who engaged in heavy episodic drinking, cannabis, and simultaneous use in the past month. Participants completed an identical report delivered at random times on two evenings assessing acute alcohol and/or cannabis use and then responded to questions assessing bystander intentions to prevent alcohol-related harm and sexual aggression in a hypothetical party situation. Acute alcohol and simultaneous use, compared to no substance use, was associated with fewer intentions to intervene in alcohol-related harm and in sexual aggression. Results highlighted the nuanced impact of alcohol, cannabis, and simultaneous use on bystanders and can help inform bystander training programs for both alcohol-related harm and sexual aggression.

Indexed as

Alcohol Drinking in CollegeIntentionMarijuana UseAdolescentAggressionEcological Momentary AssessmentFemaleHumansStudentsUniversitiesYoung AdultAlcohol useBystander effectCannabisIntoxicationSexual violence

Identifiers

PMID39667050
PMCPMC11725438

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.