Does anyone who was a kid in the late 70's or early 80's recall being pulled out of class and taken to a large bus or van and having visual, hearing, smell, and possibly taste tests performed on them? As well as some kind of card matching tests and asked to answer a series of increasingly difficult questions . I have vague memory of being asked to perform some kind testing of what now seems like some kind psychological testing. I recall the person performing the tests was not a member of the school faculty. They would take you to a large black bus or tractor trailer that had a large generator and air conditioning in it. I remember it being really cold in there and smelling very sterile.