It has to do with something called the Flynn Effect. There is a testing expert who uses this site regularly who can explain that better than I can.
In addition, it is said that a rather young child may have an unstable IQ anyhow.
If you are looking for ADHD, you will be looking at the sub-test grades and how they compare to each other more than the overall IQ.
In any event, remember that this number that you get will not change your child one bit. She will still be the bright girl you have always known.
Last edited by howdy; 11/11/15 03:56 PM.