Evaluation of a Sexual Violence and Intimate Partner Violence Primary Prevention Program Implemented in Drinking Establishments

The Safe Night Out Evaluation Study: Evaluation of a Sexual Violence and Intimate Partner Violence Primary Prevention Program Implemented in Drinking Establishments

The goal of this project is to evaluate the effectiveness of Safe Night Out, a community-level primary violence prevention program offered in drinking establishments in the Sacramento region of California. The main questions this project aims to answer are: 1) Does the Safe Night Out program reduce incidents of sexual violence and intimate partner violence among patrons? 2) Does the Safe Night Out program increase incidents of safety checks of patrons by staff participants? To address these questions, we will enroll 150 staff participants and 500 patron participants from 25 drinking establishments that have implemented the Safe Night Out program (~3 staff participants and 10 patron participants per drinking establishment) and 25 drinking establishments that have not implemented the Safe Night Out program (~3 staff participants and 10 patron participants per drinking establishment). Participants will complete a baseline and three 6-month follow-up assessments, until 18 month-follow-up.

Study Overview

• Status: Not yet recruiting
• Conditions: Sexual Violence; Safety; Alcohol; Intimate Partner Violence (IPV)
• Intervention / Treatment: Behavioral: Safe Night Out Program; Behavioral: No Safe Night Out

Detailed Description

The overarching goal of this project is to evaluate the effectiveness of Safe Night Out (SNO), a community-level primary prevention program offered in drinking establishments in the Sacramento region of California. Developed and implemented in 2019 by WEAVE, Inc., Sacramento County's primary domestic violence (DV) provider, SNO aims to train nightlife staff on how to recognize warning signs of sexual violence (SV) and intimate partner violence (IPV), and how to respond through active bystander skills to keep patrons safe. SNO has been tailored for drinking establishments in neighborhoods with high rates of SV and IPV. SNO, a single session education and bystander skills training, is to our knowledge, the only program implemented in drinking establishments in these neighborhoods. Guided by Social Cognitive Theory, Social Norms Theory, and the Bystander Education Model, and in collaboration with our Research Advisory Board, our community-academic team will conduct a quasi-experimental mixed methods evaluation study using a comparative time-interrupted series design. This study is a nonrandomized, quasi-experimental evaluation of an existing community-based violence prevention program. The research team will not prospectively assign individuals or establishments to intervention conditions; rather, outcomes are evaluated in relation to the naturalistic rollout of the Safe Night Out program implemented by a community partner. The aim of the study is to determine the effectiveness of SNO on increasing bystander intervention and reducing SV and IPV at the individual-level (e.g., patrons, staff) and population-level (e.g., census block). Individual-level primary outcomes among patrons include past 6-month SV and past 6-month IPV victimization and perpetration; secondary outcomes among staff include past 6-month increase in bystander intervention and safety checks in drinking establishments. We will also determine the effectiveness of SNO on 2-year average rates of rape, domestic violence assault and domestic violence police calls. We will enroll 25 drinking establishments in the queue at WEAVE to receive SNO training and identify 25 drinking establishments who will not receive the SNO training during the study period. This will allow for comparison between the two groups based on individual-level and staff-level outcomes, before (3 months prior) and after SNO program training (6, 12, and 18-month follow-up) using quantitative survey data (n=500 patrons, 10 per establishment and n=150 staff, 3 per establishment).

• Study Type: Observational
• Enrollment (Estimated): 650

Contacts and Locations

• Study Contact: Name: Jamila K. Stockman, PhD, MPH; Phone Number: 858-822-4652; Email: jstockman@health.ucsd.edu
• Study Contact Backup: Name: Maryam Hussain, PhD; Email: m2hussain@health.ucsd.edu

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: Yes

• Sampling Method: Non-Probability Sample

Study Population

Drinking establishments will be identified from a pre-created list that identifies drinking establishments (e.g., bars, clubs) that have received SNO training in the past two years and drinking establishments that have not received SNO training. Staff and patron participants will be recruited from the identified drinking establishments in the Sacramento region of California.

Description

Inclusion Criteria:

• Aged 21 years or older (as required per California law for alcohol servers)
• Employed and working as a bar owner, manager, or staff member of the drinking establishment that has been recruited for the study (for staff participants)
• A customer or patron in the past month at the drinking establishment that has been recruited for the study (for patron participants)
• Ability to speak and understand English

Exclusion Criteria:

• Aged 20 years and under
• Inability to speak and understand English
• No current employment at a drinking establishment recruited for the study (for staff participants)
• No history of visiting the drinking establishment in the past month (for patron participants)

Study Plan

How is the study designed?

Number of groups / cohorts

4

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Staff participants plus Safe Night Out; Staff participants from drinking establishments where Safe Night Out has been implemented	Behavioral: Safe Night Out Program; A community-level primary violence prevention program offered in drinking establishments.
Staff participants no Safe Night Out; Staff participants from drinking establishments where Safe Night Out has not been implemented	Behavioral: No Safe Night Out; No administration of the Safe Night Out program in drinking establishments.
Patron participants plus Safe Night Out; Patron participants from drinking establishments where Safe Night Out has been implemented	Behavioral: Safe Night Out Program; A community-level primary violence prevention program offered in drinking establishments.
Patron participants no Safe Night Out; Patron participants from drinking establishments where Safe Night Out has not been implemented	Behavioral: No Safe Night Out; No administration of the Safe Night Out program in drinking establishments.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Sexual Violence Victimization	Self-reported	Past six months
Sexual Violence Perpetration	Self-report	Past six months
Intimate Partner Violence Victimization	Self-report, Conflict Tactics Scale (Revised)	Past six months
Intimate Partner Violence Perpetration	Self-report, Conflict Tactics Scale (Revised)	Past six months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Safety Checks	Self-reported use of safety checks to prevent violence	Six-month follow-up assessments
Bystander intervention	Self-report of number of times active intervention occurred	Six-month follow-up assessments

Collaborators and Investigators

• Sponsor: University of California, San Diego
• Investigators: Principal Investigator: Jamila K. Stockman, PhD, MPH, University of California, San Diego

Study record dates

Study Major Dates

• Study Start (Estimated): June 1, 2026
• Primary Completion (Estimated): December 1, 2028
• Study Completion (Estimated): December 1, 2028

Study Registration Dates

• First Submitted: February 19, 2026
• First Submitted That Met QC Criteria: February 19, 2026
• First Posted (Actual): February 27, 2026

Study Record Updates

• Last Update Posted (Actual): February 27, 2026
• Last Update Submitted That Met QC Criteria: February 19, 2026
• Last Verified: February 1, 2026

More Information

Terms related to this study

• Keywords: alcohol; sexual violence; intimate partner violence; clubs; bars
• Other Study ID Numbers: 813932; U01CE003735 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: Although the data are sensitive in nature, as they include information on sexual and intimate partner violence, drinking behavior, and police calls, the grant requires all data be made publicly available within 30 months of data collection completion. De-identified data will be made publicly available on an appropriate data sharing repository.
• IPD Sharing Time Frame: The grant requires all data be made publicly available within 30 months of data collection completion. Datasets will be preserved for a minimum of 3 years following project closeout to support replication and secondary use requests approved Data Use Agreements.
• IPD Sharing Access Criteria: The Data Steward (Dr. Maryam Hussain) will oversee the Qualtrics data logs and ensure quality assurance of those data. Dr Hussain will also create an analysis plan, including all steps for data cleaning and validation, that will become part of the data repository.
• IPD Sharing Supporting Information Type: SAP

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No