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Exploring Measurement Strategies for Identifying Multiple-Perpetrator Sexual Violence: Higher Prevalence Rates Than
RaeAnn E Anderson1,2,3, Erica L Goodman1, Frances G Eby1
1Department of Psychology, University of North Dakota, Grand Forks, North Dakota, USA.
Aggressive Behavior
|February 27, 2025
Summary
Multiple-perpetrator sexual violence, including gang rape, appears more common than previously thought. This study found higher prevalence rates for both victimization and perpetration, suggesting updated measurement is needed.
Area of Science:
- Criminology
- Psychology
- Sociology
Background:
- Previous research indicated multiple-perpetrator sexual violence is rare, affecting less than 2% of individuals.
- Existing estimates may be outdated and influenced by measurement biases.
- Accurate prevalence data is crucial for understanding and addressing sexual violence dynamics.
Purpose of the Study:
- To investigate the prevalence of multiple-perpetrator sexual violence.
- To explore and validate methods for measuring multiple-perpetrator sexual violence.
- To compare current prevalence estimates with prior research findings.
Main Methods:
- Aggregated data from multiple studies using similar online, anonymous adult sampling methodologies.
- Study 1 assessed victimization across 5 samples (N=2491).
- Study 2 assessed perpetration across 4 samples (N=2699), with participants completing randomized questionnaires.
Main Results:
- Victimization prevalence rates ranged from 2.8% to 10.9% (average 4.86%), exceeding prior estimates.
- Perpetration prevalence rates ranged from 0.8% to 18.9% (average 6.43%).
- Psychometric analyses indicated significant correlations, supporting the validity of the measures used.
Conclusions:
- Multiple-perpetrator sexual violence is likely more prevalent than previously reported.
- The study provides initial evidence for the validity, utility, and acceptability of the examined measures.
- Further investigation with primary data collection is recommended to refine understanding and measurement.
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