I have a book from the library (yes, if you go to my town's library, I have all of the books!) called Essentials of WISC-IV Assessment by Dawn P. Flanagan and Alan S. Kaufman. It has a chapter entitled, "How to Administer the WISC-IV". It say that some children may fatigue easily and may need several short evaluation sessions. So it is really up to the examiner to read the child. It also says that "Examiners should obtain sufficient information about a child's medical and behavior history prior to the evaluating him or her to ensure the validity of the findings." (page 48)
There are many books out there on the WISC-IV test. Of the ones that my library had, this was the best.(but that is not saying too much). They walk you through what the scatter patterns in the scores could mean and how to interpret the scores. I don't think I would actually buy the book, but it was an okay find in the library. It does not mention ceiling effects very much and only briefly talks about testing gifted kids. But it does list the most raw points that you can get in each subtest.
