I'm not sure if this is the best place to post since it is about standardized testing not gifted testing, but I didn't know where else to post.

I recently got my son's AIMS (Arizona's end of year standardized test) scores for 3rd grade. While he scored in the 95th percentile for reading, he score in the 40th percentile for Language. I checked his records and her performed very similarly on the SAT 10 in second grade. I am concerned about the huge variation in test scores. My problem is that nowhere on the results does it explain what the "language" score represents.

Does anyone know what fits under Language and what fits under reading? I'm pretty sure I should be worried with these scores, unfortunately I'm not sure just what I need to be worried about. I've tried to contact his teacher about this but it's been a week with still no response from her. Any help would be appreciated.