Gifted Issues Discussion homepage Forums Identification, Testing & Assessment iq scores -questions

Nutmeg, I'd think those transitions are the very sort that are useful because it takes scores under HG qualifying such as for DYS to above qualifying. The HG program where I live has a rubric that gives higher points based on IQ.

I second the extended norms not being that helpful. It raised by daughters verbal to 152 from 149 and GAI to 149 from 147 and full scale went from 133 to 136. The ranges were pretty much the same though and I don't think the "extended" scores really changed anything.

As a parent of a child who hit many ceilings, my understanding is as follows: The extended norms are helpful if a child is close to the ceiling of the test (FSIQ 160) and you want to know how far above that ceiling the child actually scored on GAI. They are also helpful if your child is particularly high in one area (hits more than two ceilings), as they help provide a better understanding of the overall IQ in relation to that area of giftedness. Unfortunately, the extended norms do not necessarily provide a true picture of the EG/PG child, and many testers recommend using SB-LM if you hit several ceilings on WISC-IV and have to use extend norms. The Gifted Development Center has a nice explanation of scoring the WISC-IV and the SB-LM on its website.

Yes they might have been useful in that respect (applying to DYS, which we did not do), but with regards to the gifted program in her public school it did not make a difference.

That was what I was told (but spoken more eloquently by kccook:)) about the extended norms. I called Pearson, the company that creates the WISC-IV and there were only two children in the entire norming sample that had a GIA over 145 and no children that has a FSIQ over 145. So if your child scores in that range (or higher, which is the case for the children of many of the people on this board) they are not being compared to a large sample, they are being compared to two children. So for very gifted children it given them a larger sample to be compared against AND is more statistically sound. The intention was not to raise scores but to give the group (that already qualifies for DYS for the most part) a true comparison group.