Where does the "one in four" statistic come from? The organization One in Four USA cites a study by Ms. Tjaden and Ms. Thoennes, "Prevalence, Incidence, and Consequences of Violence against Women: Findings from the National Violence against Women Survey." If one looks at the 2006 report those authors published under the auspices of the Department of Justice, one finds that their results are based on a 1995-1996 telephone survey of 8,000 men and 8,000 women and that "only 24 women and 8 men reported during their interviews that they had been raped in the 12 months preceding the survey." That's an annual risk of 0.3 percent each year. This yields a 50-year risk of 13.9 percent, which is still significantly less than 25 percent.