TMJ, I just wanted to echo what the other posters were saying. I don't think testing at such a young is as accurate. My DS(3) was given an IQ test as part of an evaluation to qualify him for speech therapy. His score puts him at high average. Considering he's starting to read now and is doing K/1st grade math, I think it's an underestimation (plus his sister is PG). I plan on having him tested again when he is 6 and in school. I hope everything works out getting your son into the preschool program- good luck!