Since the study was about finding a correlation between IQ and, um sexual predilections, there are to my way of thinking three possible ways of doing it:
1) get a group of any people, test their IQ and log their sexual practices
2) get a group of people known IQ and log their practices
3) get a group of people of known practices and test their IQ.
It's the only way that makes sense.
1) get a group of any people, test their IQ and log their sexual practices
2) get a group of people known IQ and log their practices
3) get a group of people of known practices and test their IQ.
It's the only way that makes sense.