[fiatmoney]

IQ is defined as a point estimate of the value of a general factor of intelligence, which is in turn defined as the statistical construct that most strongly correlates with performance on disparate cognitively-loaded tasks. To the extent that there can be such a thing as "general cognitive ability", which they are apparently looking for, the only question is whether whatever specific test they're using correlates strongly with that g-factor. To the extent that it does, it is axiomatically an IQ test.

[lukasb]

While you're correct, the fact that someone can define an IQ test as the test that most strongly correlates with the g-factor (itself merely a composite factor from a number of different measures) doesn't mean that IQ, or the g-factor, or "general cognitive ability", corresponds to any physical causative factor: http://vserver1.cscs.lsa.umich.edu/~crshalizi/weblog/523.htm...