Speaking of problems with multiple choice tests:

I suspect that IQ tests have some non-obvious biases: they select for mild ADD-- a series of little puzzles which take so little time that (if you like that sort of puzzle), you don't have time to get distracted.

They don't address the ability to take on large projects or to find new questions.

They select against people who feel a need to only think about things which are directly connected to their goals.