Not a great fan of IQ testing, avoid it like the plague and have done for decades (got a note off testing at primary school after the first round).
I believe there is a genetic element for sure but I also think how big the bucket of brains is you get to fill with skills and capabilities is a function of how hard early childhood drives to build that bucket. That social construction of "give me the child until they are 12" of the Jesuits is what I think this is: they can. Because they think they can. They think they can because they were tought to think they can.
Twins testing isn't nothing. This is the gold standard we have. Danny de Vito and Arnie.
I believe there is a genetic element for sure but I also think how big the bucket of brains is you get to fill with skills and capabilities is a function of how hard early childhood drives to build that bucket. That social construction of "give me the child until they are 12" of the Jesuits is what I think this is: they can. Because they think they can. They think they can because they were tought to think they can.
Twins testing isn't nothing. This is the gold standard we have. Danny de Vito and Arnie.