Spoke with a doc at Gifted Development Center when they reviewed the neuropsych results that were done from our local neuropsych last year. The neuropsych did not use the GAI (large difference between Verbal/Perc and PSI/WMI, as well as he didn't calculate the extended norms (there were 4 18/19 subtest scores). I have left messages for the neuropsych to call me and emailed as well but no response. Can someone provide guidance on how to calculate the extended norms? I was able to figure out the GAI was 156 but the extended norms has been more difficult. Thanks for any guidance..I am very grateful.
