Kinsey and the pop authorities who followed him were based on a carefully de- signed, random survey of a cross section of Americans. These "experts" interviewed only selected-and in some cases, self-selected-groups of people willing to talk about their intimate lives. "These 're- ports' are to responsible social science what alchemy is to chemistry. . . and magic to medicine," Greeley says.
The findings turned up in 1991 the National Opinion Research Center (NORC), at the University...