This is a true story. I had to choose between r.h.f and Reader's Digest's "Campus Comedy." It was an agonizing choice. Really. In my Intro to Psych course, the instructor was attempting to il- lustrate the weakness of surveys as devices for gathering information for correlational purposes. "Let's say you take a survey of prostitutes in a small city," says she. "Of those prostitutes, a remarkable 48% of those listing religions have listed 'Episcopalian.' Can you then justifiably make any kind of cor- relation such as, 'Episcopalians are more likely to become prostitutes'?" There was a class-wide murmur of, "No." My instructor nodded. "Right. Why not? What are the problems with that statement?" A few hands crept tentatively upward, but before my instructor could select one of the volunteers, a woman behind me audibly muttered, "They're confusing Episcopalians and Baptists."
(From the "Rest" of RHF)