Abstract
The Sexual Abuse History Questionnaire (SAHQ), a widely used screening tool for childhood sexual abuse (CSA) and adolescent/adult sexual assault (AASA) experiences, has limited examination of its psychometric properties in diverse populations. Our study assessed the SAHQ's psychometric properties (i.e., structural validity and measurement invariance across demographic groups, know-group validity, and internal consistency) and estimated the frequencies of various types of sexual victimization across 42 countries and in diverse gender-, trans-status-, and sexual-identity-based groups that were previously missing from measurement-focused studies. We used a large, non-representative sample (N = 81,465; 57 % women, 3.4 % gender-diverse individuals, M(age) =32.34 years, SD=12.48) from the International Sex Survey, a 42-country cross-sectional, multi-language, online survey. The SAHQ demonstrated excellent structural validity in all country-, gender-, sexual-identity-, and trans-status-based groups, as well as acceptable reliability and known-group validity. Occurrence estimates for six CSA and AASA types were reported across sociodemographic groups, corroborating previous evidence that women and gender- and sexual-minority individuals are at greater risk of CSA and AASA. Pansexual and queer individuals emerged as a particularly vulnerable group. Associations between different types of CSA and AASA revealed that participants who experienced any form of CSA were at least twice as likely to experience AASA. The findings have significant implications for policy and interventions, especially for marginalized groups.