I asked this about a week ago and didn't get any answers :-( I've done some looking and I'm now 100% positive there is a ceiling on the 2-5 questions, so I would assume there is also one on the K-2. The ceiling appears to be way out there and it may not be a true ceiling, but rather that you just don't get Descartes Goals for that subtest. I've looked at them and many of them stop in the 240+ range on the 2-5 test. If you look at the 6+ test, the goals stop in the 260+ range.
I haven't looked for K-2 but I assume it is similar. My DS's public school switched everyone to the 2-5 test in 2nd grade in the fall, because many kids were losing focus waiting for the test to read the questions.
