Has anyone encountered scoring errors in a WJ-III parent report? The report in question is the Woodcock-Johnson Normative Update Tests of Achievement, Form B.

DS was scored both in comparison to others in his grade and others the same age. In all scores, his percentile rank was higher by age than by grade except for one--which doesn't make sense to me. I suspect some sort of software glitch, because for the same score (99th%), the program checked the box for "average to advanced" instead of "advanced" or "very advanced."

Now I'm concerned that none of the scores are accurate. Has anyone else run into this before?