Iq tests do not measure your knowledge, they measure your ability to think for if they measured your knowledge most all peoples IQ would continue to rise through out life.<quoted text>
I think that IQ tests to a certain degree are based on how well educated you are in completing IQ tests. I know people with very high IQs who would likely get completely stumped on some of the tests because not having experienced that form of testing would not even be aware of what the test was asking of them. In general though they likely are somewhat represtative of how intelligent a person is. But if you took a very intelligent person out of the jungle in Brazil, who could neither read nor write, and gave him an IQ test verbally, I doubt that he would score very high.
Intelligence, so defined, can be measured, and intelligence tests measure it well. They are among the most accurate (in technical terms, reliable and valid) of all psychological tests and assessments. They do not measure creativity, character personality, or other important differences among individuals, nor are they intended to.
While there are different types of intelligence tests, they all measure the same intelligence. Some use words or numbers and require specific cultural knowledge (like vocabulary). Others do not, and instead use shapes or designs and require knowledge of only simple, universal concepts (many/few, open/closed, up/down).