BACKGROUND AND OBJECTIVE: Research efforts are measuring various forms of online sexual abuse. There is a need to incorporate such measures of online sexual abuse into the calculation of overall prevalence rates for child sexual abuse. PARTICIPANTS: A sample of 2639 respondents aged 18-to-28 was recruited from a nationally representative online panel. METHODS: Using an online questionnaire, respondents were assessed via self-report about 9 types of online sexual abuse in childhood and were also assessed with 2 questions that have been used to assess generic child sexual abuse prevalence in previous surveys. RESULTS: The addition of the online abuse to the generic questions about child sexual abuse raised the overall prevalence rate from 13.5 % to 21.7 %. The rate for females increased from 19.8 % to 31.6 % and for males from 6.2 % to 10.8 %. The largest independent contribution to the overall combined increase were the offenses involving non-consensual image sharing and voluntary online sexual interactions with an impermissibly older adult partner. The inclusion of the online sexual abuse exposures also increased the ability to identify the survivors with the highest levels of current psychological distress. CONCLUSION: The study highlights the importance of counting and including online sexual abuse in efforts to estimate the overall prevalence of childhood sexual abuse. The paper proposes 2 or 3 questions that could be added to sexual abuse questionnaires to assess these online offenses efficiently.
