IQ is relative,
to a supposed average which they get from a large sample of the relevant population, I believe. So it doesn't matter that the first test was flawed.
Whether it tests for anything other then the ability to do IQ tests is up for debate, however.
(
tomsk,
Tue 14 Jan 2003, 13:01,
archived)
or
whether there is even 'a thing' to measure
(
Spoon,
Tue 14 Jan 2003, 13:06,
archived)