In the debate over the causes of group differences in IQ, it is often claimed that no serious scientist believes genes play a significant role. The only people who believe this, it is said, are assorted cranks and amateurs. We can quickly dispense with this claim by consulting the various expert surveys that have been conducted over the years. Both
I'm sure the high non-response rate is mostly just a result of people not being interested in responding. But I also wonder how many people don't respond to these kind of studies because they don't want to offer any kind of opinion to a controversial question.