Is there scientific evidence that IQ tests measure intelligence?
There is no universally accepted definition of &quot;intelligence&quot;, so there is no universally accepted measure of it. An IQ test can be argued to measure specific types of intelligence like pattern recognition, but may completely ignore other types of intelligence like creativity and social intelligence. IQ has been shown to be associated with many factors like income, educational attainment, job performance and incarceration rates, so IQ tests clearly measures something meaningful and associated with many aspects of one's life, but whether you call that &quot;intelligence&quot; is open to debate. It's reasonably well accepted that an IQ test can measure specific kinds of intelligence, but there is no way to even define, much less quantify, intelligence in a general sense.