I think a lot of people didn't believe that Finkelhor was able to obtain accurate information. He looks only at reported, verified cases from criminal justice. Unfortunately, that doesn't account for the cases that people do not report, as well as the dire straits affecting almost every child welfare agency budget in the U.S., which means that not all reports are checked.
Dr. Frank Putnam at Mayerson Center for Safe and Healthy Children at Cincinnati Children's Hospital Medical Center is doing some research into this, and expects to have the results published in the Fall.
-- J.