In a few years after Hitlery is President such studies will be declared "hate speech". Scientists who engage in them will face fines and prison terms.
It's gonna be a brave new world.
Based on THAT anecdotal evidence, I'd say the study is correct.
I always did well on those tests we were given in school, until it got to the "spatial" part of the test.
Oy, no way could I figure them out.
When I was homeschooling my son, we used books that taught "critical thinking." I could sequence, I could do analogies, but when it came to spatial relationships, I just handed the kid the book and told him he'd have to figure those out for himself, LOL.
Another instance of liberals not letting facts get in the way of a chance for righteous indignation.