I asked my mathy husband your question 22b and i am sure his explanation will be more clear:). Per the evaluator: In order to to initially be included in the extended norming sample you had to have a GAI at the 99.9th percentile and both the PRI and VCI needed to exceed the 98th percentile and you needed to have received the maximum raw score on at least one subtest (all before extended norms). When the norms were published the criteria for the use of extended norms was listed differently. His argument was unless you meet the above criteria you should not use extended norms because you do not meet the criteria of the norming group. I can see how my wording was not clear, sorry for the confusion.
