I don't think counting to 3 is a major part of any of the actual IQ tests.
Sorry--I think I was unclear. What I meant was that his idea of school tasks is mostly what he got in pre-K and K--"How many balls does Jim have?" He's not really accustomed to anything being hard. He has a tendency to answer very fast and to pick the "easy" choice, unless you warn him to slow down and think. I know to do this, but you can see the concern. I am not familiar enough with the process to know whether testers pick up on this and work to help the child perform his/her best.
DD's school testing was kind of a black box for us; I have no idea what went down or how she reacted. I was not anywhere near the building, nor did I meet the psychologist. We received very few notes.