What is the population of the adults being tested? I am wondering where those numbers you mention re adults because I would expect that the number of adults undergoing IQ testing is much lower than children - testing is required for a lot of school programs but once you are grown up, I don't see where adults would be tested. So I am wondering where this question is coming from and where the data is coming from.
I know my test scores from 3 periods of my life with the last being in high school (after high school, there was no need for testing - nothing depended on those results post high-school), and the factors that impacted the scores over time.
