Another big downside to intelligence tests is they can make you think you are just that intelligent. (More commonly known as pride / arrogance. We all suffer from this, but I digress.) I've had conversations online with people who have scored extremely high on IQ tests. Now interestingly, this person assumed because of their high IQ scores that they were great at deducing patterns and reading people. They ended up coming to simply outrageous conclusions about myself that they were certain were correct no matter what I said.

So, I personally think IQ tests are worthless. I don't see any benefits that come from knowing what your IQ is. The only thing they give is arrogance, and as Albert Einstein (may have) said, "The only thing more Dangerous than Ignorance is Arrogance."