At 4 relatively poor performance on the verbal section, compared to his visual spatial score could indicate anything from not liking to talk to adults he doesn't know through simply more age appropriate skills in that area (which have yet to take off but could yet) and up to an actual sign of a problem. What did the psychologist think? You took him because he's having problems - is he having problems because he's very gifted or because very uneven development is causing extreme frustration (and he's very gifted in some domains)? That's what the psychologist is being paid to help you figure out!
