According to the evolutionary psychologist from the London School of Economics and Political Science, Dr Kanazawa, men who cheat are likely to have lower IQs. His theory is based on the assertion that men have always been mildly polygamous through evolutionary history. Though, this has changed, he says, as men are now evolving into monogamy. As intelligent people are more likely to adopt new practices, i.e. evolve themselves, he concluded that more intelligent men would be more likely to value sexual exclusivity than less intelligent men.
Read more: Daily Mail
Actually, I find this test rather inconclusive. I mean what is the "now" Dr Kanazawa looking at? 21st century? Or this new millennium (which is only into its first decade)? If his "now" takes reference from 1900 onwards, Albert Einstein wasn't exactly a faithful man. Neither was "my wife gassed herself and so did my mistress" Ted Hughes. Yet they were brilliant in their own fields. On top of that, looking at the recent spat of cheating sportsmen, I think it would appear that ultimately, we all are stupider to pay a bunch of "stupid" men so much money to run around a football field or totter around a golf course.