Interesting Reminder That It Is Sometimes Difficult To Figure Out The Trend

In Frank W. Putnam, "Ten-Year Research Update Review: Child Sexual Abuse," J. AM. ACAD. CHILD ADOLESC. PSYCHIATRY, 42:3 [MARCH 2003], 269 is a discussion of attempts to determine whether child sexual abuse has been increasing, or decreasing -- and two different survey methods yielded utterly opposite results.