I don't think I'll ever grasp all of this, LOL!

What is "extended scoring"? He was 8y9m at testing, but the report doesn't have raw scores. I don't know that I'll be meeting with the school psychologist again, we're moving in a few weeks. Dumb question, but would she have kept raw data once it's compiled into the report provided to me (IOW, is there a requirement to do so?)?

When you say "index scores" do you mean the composites? If so, they are VCI-140, PRI-139, WMI-132, PSI-112, and FSIQ-141.