Didn't the IQ section say to only report a score if you've got an official one? The percentage of people answering not answering that question should have been pretty high, if they followed that instruction. How many people actually answered it?

Also: I've already pointed out that the morality question was flawed, but after thinking about it more, I've realized how badly flawed it was. Simply put, people shouldn't have had to choose between consequentialism and moral anti-realism, because there are a number of prominent living philosophers who combine the two.

JJC Smart is an especially clear example, but there are others. Joshua Greene's PhD thesis was mainly a defense of moral anti-realism, but also had a section titled "Hurrah for Utilitarianism!" Peter Singer is a bit fuzzy on meta-ethics, but has flirted with some kind of anti-realism.

And other moral anti-realists take positions on ethical questions without being consequentialists, see i.e. JL Mackie's book Ethics. Really, I have to stop myself from giving examples now, because they can be multiplied endlessly.

So again: normative ethics and meta-ethics are different issues, and should be treated as such on the next survey.