No idea. I don't believe in any of that stuff or in personality tests really. Only heard about it because of Chelsea Handler's last book. But I did find the results were very accurate for me personally - and the other types did not sound at all like me, so it didn't really seem like some sort of thing like with horoscopes where it's super vague and you can see yourself in all of them. But again - I don't believe in any sort of hocus pocus, astrology, and whatnot - just found the results true for me personally.