Two main reasons for that.
First, passing IQ tests relies more on education that pure computational power, therefore more educated get more score
Second, American education for the most part is heavily left leaning, especially various social studies and "arts", a serious fraction of which is plain liberal brainwashing so no surprise that more educated (but still dumb) people with 6 figure college debts score higher
At last, I would doubt everything liberals say, these bitches love deception of all kinds
First, passing IQ tests relies more on education that pure computational power, therefore more educated get more score
Second, American education for the most part is heavily left leaning, especially various social studies and "arts", a serious fraction of which is plain liberal brainwashing so no surprise that more educated (but still dumb) people with 6 figure college debts score higher
At last, I would doubt everything liberals say, these bitches love deception of all kinds