I have found MAPS quite helpful in advocating for my child within the school system. Because it allows the kids to test out of level it gives over time, a fairly accurate view. Two caveats: The grain of salt issue is definitely still there. My dd10 scored off the scale in reading this fall. In no way do I feel that she really has the schema or sophistication of a 12th grade AP student!
Same thing here. We also homeschool, but with a public charter school. MAPS got DS a grade skip. It is useful because now he can get access to higher level writing and science classes. However, he can no way work at the level he tested out at. So what level your DD is in still up to your own judgement.
