Third Opinion 

I followed a link here from the Third Opinion article, so these are my two cents
Personally, I do not see any reason to reference the IQ of John Morgan in the article. I also do not believe it falls under what is allowed by Wikipedia:Biographies_of_living_persons, as it is apparently controversial (based on discussions going on at this moment). Moreover, Wikipedia:Biographies_of_living_persons states "We must get the article right.[1] Be very firm about high quality references, particularly about details of personal lives. Unsourced or poorly sourced contentious material — whether negative, positive, or just highly questionable — about living persons should be removed immediately and without discussion from Wikipedia articles,[2] talk pages, user pages, and project space."I believe what is said about IQ here is questionable at best, as it also appears that there is no solid confirmation as to what exactly his IQ is. It may also be worth noting that, as per the IQ article on Wikipedia, IQ is highly criticized.