HappyMama, I reread your first post to the forum to get a sense of what was going on with your ds' scores - I'm confused a little bit by that post because it sounds (there) like your ds hadn't been through vision therapy yet. If he's had 6 months VT *after* the neuropsych testing, then chances are good, if you've noticed some improvement, that his test scores may change up a bit next time he's tested.
It's highly unlikely you'll find one place that will have all the tests and all the answers for you. You're headed in the right direction by starting off with a neuropsych eval - I'm guessing the scores that are posted in your other thread are from that eval. Did that eval include any additional type of tests in addition to IQ and achievement tests? Anything to tease out or diagnose the ADHD? Anything to look into motor or visual challenges? If you have more tests from that eval, we might be able to give you some more specific input.
I personally think it's *great* that the GDC reviewed the tests you have and made suggestions for additional testing before they do an eval. CAPD testing is very specific to audiologists - a neuropsych and/or a testing center like GDC isn't going to offer it, but the fact that they looked at your ds' scores and recognized a pattern that might suggest it is good info for you. I suspect you can get CAPD testing paid for by medical insurance too. I'm not sure where you live, but if you're far away from the center recommended by GDC you can look locally.
Did the neuropsych who originally evaluated your ds say anything about the possibility of dysgraphia or a fine motor challenge? Dysgraphia can have a visual or a fine motor root, and there are tests that neuropsychs frequently offer that determine which is the cause of suspected dysgraphia. I suspect your neuropsych felt it was vision-related due to the recommendation for VT, but if you have other test results and can post them, we can look and let you know if it looks like their might be a fine motor issue. If there *is* fine motor involved, it might be helpful to have an OT eval - is that what GDC was recommending? Or did they also look at any writing samples etc from your ds?
What did your ds' optometrist find in his initial assessment before he began VT? Again, a neuropsych can see from their eval that a vision challenge exists, but the optometrist is the professional who diagnoses what the actual challenge is. Some vision challenges are resolved quickly with VT, others can take more time. The time required for a full program of VT can also vary depending on how frequently the person does exercises as well as how many times per week they have in-office VT.
So.. in a nutshell, no, I doubt there is one place you can go to get all of your answers. I do think you already have quite a bit of great data as a starting point, and you've had a recommendation to gather more data before spending $ for testing at the GDC - I think that's a sound recommendation, otherwise you will likely have another set of ability and achievement testing with questions out there such as - are the discrepancies due to CAPD or dysgraphia etc.
Hope that makes sense! And good luck - it isn't easy getting to the root of 2e challenges, but it *is* very much worth figuring it out.
Best wishes,
polarbear