To put some perspective on this, if I've looked at the RIT score tables correctly, he went from the 91st to the 94th/95th percentile in reading and from the 95th to the 98th/99th percentile in math. He was doing very well before and now he's doing better, but not amazingly so.
How many times has he taken the MAP? If September was the first time, it could just be due to the practice effect. It could also be the beginning of a great leap forward where his achievement scores start to line up better with his IQ. The MAP is untimed, which makes it a great test for kids with LDs.
Keep in mind that grade equivalent scores can be misleading. The MAP is not a placement test. His 7th grade equivalent scores simply mean that his scores were the same as those of a 7th grader at the 50th percentile. Average 7th graders have *not* mastered 7th grade material; they have mastered something closer to 4th or 5th grade material (I'm not exaggerating here).
I think it's wonderful that you're seeing improvement, but I don't think these scores warrant another round of IQ testing just yet.
