The first IQ test I took (in first grade) was a COMPLETE surprise to me. I wonder if my parents were even told in advance that it would happen. I was asked to leave my classroom--which had never happened before--and taken to a small room with a man I had never met to do the test. (The protocol of the test includes letting the test-taker know that the test is about how smart the test-taker is, so I would have learned that just as I began.) Certainly, today's era of parents knowing the brand name of the test in advance, and letting the children know when the test will occur, and ANYTHING about test procedures, is at least somewhat different from the test conditions existing in the era when I took my test.
This thread prompted me to look up an old news story. One link is in my earlier comment above. Here is another:
http://news.bbc.co.uk/2/hi/uk_news/education/1853847.stm 
