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Arch Sex Behav. 2016 Jul;45(5):1185-93. doi: 10.1007/s10508-015-0666-2. Epub 2015 Dec 17.

Assessing Police Classifications of Sexual Assault Reports: A Meta-Analysis of False Reporting Rates.

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School of Justice, Faculty of Law, Queensland University of Technology, GPO Box 2434, Brisbane, QLD, 4000, Australia.
School of Behavioural, Cognitive and Social Sciences, University of New England, Armidale, NSW, Australia.


The objective of the study was to determine, through meta-analysis, the rate of confirmed false reports of sexual assault to police. The meta-analysis initially involved a search for relevant articles. The search identified seven studies where researchers or their trained helpers evaluated reported sexual assault cases to determine the rate of confirmed false reports. The meta-analysis calculated an overall rate and tested for possible moderators of effect size. The meta-analytic rate of false reports of sexual assault was .052 (95 % CI .030, .089). The rates for the individual studies were heterogeneous, suggesting the possibility of moderators of rate. However, the four possible moderators examined-year of publication, whether the data set used had information in addition to police reports, whether the study was completed in the U.S. or elsewhere, and whether inter-rater reliabilities were reported-were all not significant. The meta-analysis of seven relevant studies shows that confirmed false allegations of sexual assault made to police occur at a significant rate. The total false reporting rate, including both confirmed and equivocal cases, would be greater than the 5 % rate found here.


False allegations; Meta-analysis; Rape; Sexual assault

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