There are so many different types of IQ tests starting from a tradition of Binet & military testing which spans back over a 100 yrs, and that's of what we know - fr cabal/elite history: there is prob a lot more to the story. The topic is controversial even in those circles. However, in gifted intelligence, learners are identified in a certain area, (verbal-linguistic, logical-mathematical, etc. and many states are expanding to include different areas of giftedness youth can be identified in).
The 'how to make a perfect mind-controlled slave" fr Springmeier & Wheeler talks about IQ testing done at an extremely early age (I'd REALLY like to know what test they used - the ones school psychologists have had over the years are prob some normie version). They use the results of that test to develop programming for enhancing certain skills. From the results in certain subsets of the test.
If you look at CogAT, a particular type of cognitive test administered in K-12 public skills there are 3 areas of intelligence assessed: logical-mathematical, verbal, nonverbal (visual-spatial).
History of how we look at and assess IQ disagrees w/your assertion. Even Cabal/bloodline history.