The testing of children is somewhat difficult as the age of the child plays a factor in the calculations. I believe that your most recent test is the most accurate as any test after the age of 15 is going to remain roughly stable until middle age. I sense that you like to think of yourself as very gifted, but would remind you that an IQ of roughly 120 is very high (you would be smarter then roughly 85-90% of individuals). Secondly there are other important factors in how "successful" an individual is, and with an IQ as high as 120 there would not be many doors closed to you.
However you may wish to wonder about the huge fluctuation that occurred in your scores. I cannot say why this happened but I can say that there is little good evidence that education can make such a big difference in IQ to account for a 15 odd point drop.
Overall, regardless of your true IQ you should be pleased that you are clearly well above average.
Sep 12, 2008 Rating
Above Average IQ Score by: Saqib-Admin
As far as my studies and loud thinking are concerned, there are not only Flynn's effect and cognitive development process but many other factors that may shift your IQ score with WPPSI and WISC-III. They include the testing environment, your present state of mind, the age verses the test etc.
However, I can opine safely that you are above average as two professional tests taken at different levels of your chronicle age depict. The low scoring in WISC-III for the first time may be due to certain circumstantial factors.