I met with a psychologist this morning. He will be doing IQ testing on DS5. He said he would be using Weschler. I got home and looked it up, and I see that there is a version for kids approx. 3-7 and one for kids 6-16 (WISC IV.) My son will turn six in June. Are the age limits strict on the tests? For example, could a five year old be tested using the one for six year olds or would he have to be tested with the preschool version? I have a feeling my son will test fairly high, and if he has to be tested with the preschool version, I may cancel and go back after he turns six. I think it would be a waste of money if he doesn't have room on the test for a fairly high score. I don't know much about testing. I would appreciate any advice!