I posted earlier on my friend's son. He tested in K, 1st and 2nd. Never qualifying for GT placement. However, this year he scored over 145. I'm not sure if he was given the same test every year. When her district spoke to her regarding his scores, I don't think they told her of the ceiling or where his rank placed him. They just signed him up GT classes. I thought the ceiling was close to his scores. Anyway, I told her about my posts on this board earlier and offered to see what you guys knew about this test. I'm sending her the link so she can log on as well.
I've seen/heard anything 140 and up is a very rare score and hitting the ceiling zone. Including from our district GT office. They test thousands of kids a year with the NNAT