My son was given that test at a children's hospital to diagnose his dyslexia at the same age. Unfortunately, I didn't know I should have asked for an actual IQ number at the time as well, so we didn't get it. We later got the WISC to get an IQ score. The tester at the hospital did say he was highly gifted, and his scores had a 60 point range, so his dyslexia was quite easy to diagnose.
Our tester told us to tell my son that someone was going to ask him questions that would give us information about how he learns best.