Can I just ask if someone has checked to make sure this image really appears in the source cited and that it is real data from a wide ranging survey of some kind I ask because I find it incredible that four groups were tested and found to have very different average IQ s yet they all had the EXACT same frequency distribution of IQ relative to the mean If that s what the data says then I have no objections but I just want to be sure we re not letting false information into the article under the assumption that it s legitimate Soap