I.Q. test results, why is this?

IQ tests given at young ages are often a bit inaccurate. So if you got retested, chances are it would actually go down (they tend to exaggerate - that's why when only 2 people in 1000 would have an IQ over 130, you appear to have many more than that at your school - probably very few if any of you actually have that high of an IQ). But IQ is supposed to be a measure of your potential, not much else. Apparently you're doing more with your potential than the other guys you think you're smarter than.