>>14182535That's IQ. IQ correlates with intelligence (r = 0.85), but they are not the same thing. For example, if you're adopted by rich parents, your IQ might be up to 15 points higher than it would be otherwise, but all of these 15 points will be on crystallized intelligence, not fluid intelligence. The correlation between adoption gains by subtest and the g-loadedness of the subtest is r = -1, perfectly inversely proportional.
Notice that IQ adoption gains include: better parenting, better peers, better nutrition, better educating, more access to information, much better mental health, etc. Try to fathom that: providing a child with near-optimal circumstances on every single one of the "usual suspects" of intelligence development can do ABSOLUTELY NOTHING to improve their general intelligence. Now you will probably understand why everyone who studies IQ ends up deeply hating IQ research.
