IQ does have value; however, there are WAY too many factors that can affect how you score. First of all, try to take an OFFICIAL test (not some online one). Second, make sure you have adequate sleep/focus. These two things alone can make a BIG difference. Also keep in mind IQ isn't always an accurate determination of intelligence. I took an online IQ test at 16 and it said around 125 which was very disappointing to me, but then later I went to a psychologist (or something, it was to test if I had ADD) and the intelligence tests they administered showed that I was in the 99%, same with the tests I took in school. So I mean, look for alternatives to the IQ test. It can be accurate and other times not. I believe most schools make you take some sort of test that gives you a certain percentile within areas, that is usually a good measure.