I don't know much about these tests, and now I'm confused and want to understand this better. So if anyone can clarify this for me, I'd really appreciate it.

When Dr. Ruf compared the SBV and WISC-IV to the old SBLM is that without the extended norms? If you have an extended score, would that match up with the SBLM more closely?

I know without the extended scores, you can't tell if a 145 is a 145 or possibly/likely higher because of ceiling issues. So it may really be in the 170's. Without extended scoring, you just can't tell. My dd had a score in the high 150's and I have a really hard time believing that it could really be in the 200's on the old scale. With the extended scores, it went up, but only to the 170's, no where near the 200 mentioned.

I guess it reaches a certain point where it doesn't really matter, she's really out there either way. I'm just curious because I happen to know my parents' IQs (both around 150) on the SB-LM and I think it's interesting to compare.