I think the thinking behind IQ has to do an additional filter plus achievement testing at that age can be tricky. Dottie may know more, but my understanding is that a 5 yo with high WJIII scores is not as impressive as a 9yo with high WJII scores. On Epsilon camp admissions, they ask for the arithmetic subtest if possible. If your son had this as a subtest and did well (or hit the ceiling), I would ask for them to review even without qualifying IQ scores.
Thanks for the insight into their thinking about asking for IQ scores. It is true that achievement scores are boosted by exposure (e.g. an internet connection, so a kid can teach themselves more easily than when we were kids), but like any test, they measure what they measure. A high achievement score clearly indicates ability too.
Anyway the virtual school told us they'd be testing and did it for free (so DS7 qualified for their gifted label), and as a by-product we have some (scattered) scores which can be used for some things. They didn't do the arithmetic subtest, which is a pity because it certainly would be high (though WMI was high anyway).
By the time 2015 applications roll around, DS may have an AMC8 score and an EXPLORE score, which may or may not be good/great for age. But they'll be a decent amount of data showing math ability.
I just can't see going out and getting an IQ test for the mere possibility of qualifying for a camp.
