Hmmm it is definitely the SCAT. They do have it listed on district reports regarding the tests given.
I have heard of many local private schools administering the SCAT - they get authorization from JHU to be a test center for their students to take SCAT, I think (ETA: license it from JHU). I am also told that these schools in my area use SCAT instead of OLSAT and WJ because it is a time saver and gives them a quick screening test. So, it is possible that your son took the SCAT.
My son took the SCAT at the prometric center and the JHU website has detailed explanation of what the scores mean.
