If someone can improve their score by multiple standard deviations, what it says is that any genetic (in the broader sense of "genetic" -- of or relating to origins -- as opposed to DNA alone) component is incapable of reliable measurement.
That it's imperfect.
It's just a TEST.
I agree. But it's still useful for analizing and predicting demographic paterns. It's not useful for predicting the success of any individual.
I care more about production and results. Either way, this thread is supposed to be about immigration, which is even misleading since if the government did their job with illegals, we'd not have this discussion.
Hey, I did not bring up this stuff about genetics and IQ. Blame Poohbah and hchutch.