True, they only measure mathematical processing, but don't take into account many other aspects of the brain like philosophical intelligence. Essentially, they show how many long series of calculations and extrapolations you can make, which are totally useless in real life. I think that for practical purposes, IQ differences are not very significant past a certain level.
Furthermore, they mean very little for people with disabilities such as myself. Nevertheless, it's still fun, for people with way too much time on their hands.
[ August 10, 2004: Message edited by: Laukev7 / BOB ]