HEMENWAY CRITICISM OF KLECK
“Since a small percentage of people may report virtually anything on a telephone survey, there are serious risks of overestimation in using such surveys to measure rare events. The problem becomes particularly severe when the issue has even a remote possibility of positive social desirability response bias.
Consider the responses to a national random-digit-dial telephone survey of over 1,500 adults conducted in May 1994 by ABC News and the Washington Post. One question asked: "Have you yourself ever seen anything that you believe was a spacecraft from another planet?" 10% of respondents answered in the affirmative. These 150 individuals were then asked, "Have you personally ever been in contact with aliens from another planet or not?" and 6% answered "Yes."
By extrapolating to the national population, we might conclude that almost 20 million Americans have seen spacecraft from another planet, and over a million have been in personal contact with aliens from other planets. That more than a million Americans had contact with aliens would be incredible news—but not the kind actively publicized by reputable scientists. Yet the ABC News/Washington Post data on aliens are as good as or better than that from any of the thirteen surveys cited by K-G as supporting their conclusions about self-defense gun use.”