Gifted Issues Discussion homepage Forums Identification, Testing & Assessment Large decrease in IQ scores over 3 years??

This happened to us, but we used different testers.

After thinking about his reading level and comparing his abilities with his consistently 140+ scoring brother and other family members, we tested for a 3rd time using the SB-V (prior testing had been with the WISC). His score with that was the highest of the 3, but in the same neighborhood as his earlier high score. He does have somewhat uneven abilities but I don't have any doubt that his thinking skills relative to his peers are consistent with the higher scores.

I think one of your biggest clues would be the psychologist's attempts to reconcile the two scores. What did he/she say about this? With that kind of difference one of the test results is "wrong" and for what you probably paid each time you should have gotten some feedback on the discrepancy. I'm not saying it's anyone's fault, or that anything was done incorrectly, but the situation is a little sticky and I think it's reasonable to expect to be walked through it.