 Bruce Gross of the Forensic Examiner described it as meaningless, saying a report could be marked as unfounded if there is no physical evidence or the alleged victim did not sustain any physical injuries.Other studies have suggested that the rate of false allegations in America may be higher.A nine-year study by Eugene J. Kanin of Purdue University in a small metropolitan area in the Midwestern United States claimed that 41% of rape accusations were false.