Video tape of your son is a great idea - get the camera out and see what you can catch! And achievement testing is (in my opinion) less bonding dependent...if you can afford to have the psychologist do it, go ahead - or at least talk to the psychologist and explain - perhaps there is a student intern who could do some of the work for less than the usual fee under the psychologist's supervision.

Smiles,
Grinity

Coaching available, at SchoolSuccessSolutions.com