How do they measure "cognitive ability" in this study? If it's just IQ the then why not just write "high-IQ" and avoid the ambiguity? EDIT: See here: https://

How do they measure "cognitive ability" in this study? If it's just IQ the then why not just write "high-IQ" and avoid the ambiguity? EDIT: See here: https://news.ycombinator.com/item?id=33855704 https://news.ycombinator.com/item?id=33855704