IQ is not something that is commonly discussed among players (or more likely I just happen to fall within the dumb crowd). However I've played people very successful in their careers but totally lost when it comes to chess. Also many of the good players didn't seem to have a balanced life. So my limited personal experience shows little correlation. However that is probably not a good enough sample space.
I'm still hoping Milo supporters will enlighten us but so far it's been all sugar and no health like Nestle's Milo.
I think this is the graph (or something like it).
thanks but i was hoping to see data and sources on the chess-iq correlation instead.
Not sure how correlated it is, but obviously it is a bit. Would you rather play someone with a 60 IQ or 140? Magnus Carlsen as a kid had a phenominal memory for world capitals. Memory as I understand is a big part of IQ.
So it may play a small part in the success of women. Most likely IMO the main reason is simply interest.