I think Ruf's "statistics" have to do with the circle she was exposed to and the population demographics.
In New York, many upper middle class, highly educated parents test their kids for Hunter, the gifted school. 20% of the kids tested, test at the 98th percentile or above. Clearly, in the general population 20% of children do not test at the 98th percentile, or it wouldn't be the 98th percentile. But in the population that tests for Hunter, parents that want their kids go to the gifted school, 20% score very high.
In the citywide schools, 20,000 kids took the test. On the Upper Westside, where you have many highly educated people, many kids score in the 99th percentile on the OLSAT. In the Bronx, not so many.
Though I think that starting with a high IQ does not necessarily mean a life long love of learning and motivation so that the intelligence flowers into something extraordinary, because it can just as easily stagnate into a stump.
Ren
