You know I had not thought about the flip side of my question (relative fertility of IQ ranges). Probably because I came to this question through trying to figure out why my supposedly statistically rare child seems so utterly normal to me, and to my friends. She's just like their kids... Between the kids I know have tested gifted, and the kids I am certain would test gifted, its not gifted that seems abnormal in our circle. Admittedly I don't know any children personally that I know for sure are of a similar or higher LOG to DD#2, but she's not going to stand out nearly so markedly surrounded by kids within 5-10 points of her, than she would if surrounded by children 40 points different. Which lead me to wonder if there were more gifted kids now than when I was younger...
