I was shooed out of the entire building for DD's test (WISC IV, at 6.5, at Ed Psych's office). She did it in 2 x 2-hour blocks a few days apart, and loved it. She wants to do it again smile
I was shown a couple of examples of puzzles and drawings she did, but definitely not every question and answer.
I wouldn't have wanted to sit in or observe - too nerve-wracking! And DD would have looked to me for reactions/encouragement and I would have been too tempted to butt in to "clarify" things, both for DD and the Ed Psych. DD is quietly confident and excited to try interesting new things, so she was good without me