Thoughts and concerns:
In my understanding you are supposed to wait a minimum of two years between testing with the same IQ test in order to get accurate results, so if it was the same test all scores would be in question for that reason. The other thing that might be making a difference with your older is that he might be past the ideal age to test. Once they pass that point it is harder to get the same or higher scores because of the different weight for the higher ages.
Last edited by melmichigan; 01/20/10 09:06 AM.
