I was allowed to sit in during one of my children's earlier IQ tests. The first question they were asked is "What is a sock", to which they answered "Something for your foot", delivered with quite a lot of personality and eliciting a chortle from the psychologist. My child then proceeded to try to use the same format for every answer, which became more and more inappropriate. I was quite appalled at how long this was allowed to go on for, and that the psychologist seemed unaware that it was her own initial response that had lead my child to answering for entertainment value (especially in the face of such boring questions).