Originally Posted by Rayson
I thought of the possibility that he could've had a bad day, etc.

I would think so. It is also heavily dependent on psychologist's skill.

Originally Posted by Rayson
he doesn't have any DYS level peers (or at least I have not explored fully).

If your kid had EXPLORE test, then you may find kids at your son's level in those talent search centers such as NUMATS, TIP, or any interest group such math club, writers club, etc.