Greetings
I am thoroughly convinced that the IQ tests, or any other forms of intelligence tests are not really suited for telling the person of their intelligence, as intelligence cannot be measured, given its multi-faceted nature. IQ tests however do probably correlate with the level of arrogance that is issued forth from the person that has been claimed a "genius" by one of those tests. Simply speaking, the higher the score, the higher the probability that the person will brag about his or her intelligence, and any form of "societies" are just another way of segregation, with the members under the impression that they are of any kind of high status.
In my opinion good test-taking skills and good test taking habits will lead to better scores. Simply speaking, an IQ test is a multiple-choice test, and many forms of strategies could be applied, and those that are adept to such tests will find it easier to get the most without spending too much time on the questions. Also, you have to consider the questions that are guessed right. Theoretically, if you guess right at a question you are lucky, but not necessarily more intelligent. However, the test score will provide you with a faulty answer. Similarly, you also have to consider the questions that you blundered on due to either stress, poor concentration, or just pure accident. This effect is amplified due to the timed nature of these tests, where you are encouraged to rush through the easy questions and spend more time on the harder ones. This naturally leads to blunders.
All in all, only you should determine your own intelligence, based on yourself and what you have done, not on written down information that is basically meaningless. Don't worry about your intelligence, worry about using it.