Interesting. Wouldn't this also reduce the validity of this 5 minute IQ test? I suppose there could be physical issues, like poor vision or tactile sensitivit

Interesting. Wouldn't this also reduce the validity of this 5 minute IQ test? I suppose there could be physical issues, like poor vision or tactile sensitivity that would affect a test like this. So I wonder, perhaps people who can see better are more likely to be smarter simply because they can observe more items in the world.