I think the the psychologist didn't use the extended norms because, as I understand it, you would usually need at least two subtests to ceiling...

"The extended norms are useful when a child�s score is the
maximum (ceiling) on two or more subtests (e.g., obtains scaled scores of 18
or 19 points)."

Last edited by herenow; 05/04/11 09:53 AM.