I guess if you accept IQ as a proxy for general cognitive ability, this would suggest the article is right.
On the other hand, I still find it very counter intuitive. The ability to plan ahead and the spatial thinking are things I though would transfer well to other domains (arguably both are not things that an IQ test, or the academic tests from the article, would measure well though).
https://www.youtube.com/watch?v=Nx3h70GoaoM
I guess if you accept IQ as a proxy for general cognitive ability, this would suggest the article is right. On the other hand, I still find it very counter intuitive. The ability to plan ahead and the spatial thinking are things I though would transfer well to other domains (arguably both are not things that an IQ test, or the academic tests from the article, would measure well though).