This year I tested all the kids at once. It was so much easier and faster than testing them individually.
Jeremiah was the only one who did not have to test. His school year ended in May and he wasn't 7 yet. He did very well with staying busy and quiet.
He mostly sat with his back to the testers and played with LEGOS.
When he got tired of that he went upstairs and put on a video in my room.