Alyson,
Absolutely go with GAI scores. Apply to Young Scholar's Program. I find it so interesting that they are only looking for subscale scores not full scale scores.
I'm reading Dee Lovecky's 'Different Minds' right now and she teases out Gifteness with ADD and AS. Very interesting.
In a way I think it's a great idea to learn more about workinig memory and do some informal working memory testing/training at home. We play a word game where one person chooses a few letters, and the other people have to come up with a word that has all those letters in it. It's interesting to watch what happens in my brain when it gets up to 4 letters. I keep watching my 'average' working memory fall apart. DH can do 4 letters without a problem, and I'll bet he could do more if asked. DS is more comfortable with 3, but can do 4 if he's relaxed. I think these games are good to help see 'what is working memory/why is it important' and also practice always helps, or you can give him some paper and pencil and show him how much easier the game is if he can write down the numbers.
There is also the possiblity that you will find a slender area where your son's WM is pretty strong, and then you can teach him to use that approach when he reaches his edge.
For example, if I put things to a tune, then I suddently have tons of working memory.
I think evaluating ADD in PG kids is a very tricky thing, and if there is such a thing as 'a special kind of ADD that only PG and near PG kids have' what is the point of calling it ADD? Any yet, it really helps to realize that your child is 2E and reaching his potential is going to be a bumpier road than a child who is just plain gifted.
Love and More Love,
Grinity
