You're right Dottie. I looked in the "what tests" section and it says tests with standard deviation of 15 or 16. So I assume since the form sample is covering both then it doesn't matter as long as it's within that range.

The "benefit" of the 3rd edition is the ability to use the CogAT. It also lists a few other tests in the ability section and even others in the supplemental tests that weren't there before.