Likewise, the IQ test lacks any problems that are actually difficult enough to have some solution methods that some people would know before the test, and some won’t.
Indeed, when I last took a few IQ tests I felt like I was being tested tested more for familiarity with concepts such as exclusiveOR, cyclical permutations, and similar basic discrete maths stuff than for processing power. (Of course, it does take insight to realize that such concepts are relevant to the questions and processing power to figure out the answer within the time frame of the test, but I think that if I had never heard about XOR or used Sarrus’ rule I would have scored much worse.)
ETA: This is also why I suspect that the correlations between race and IQ aren’t entirely genetic. If Einstein’s twin brother had grown up in a very poor region with no education...
Indeed, when I last took a few IQ tests I felt like I was being tested tested more for familiarity with concepts such as exclusiveOR, cyclical permutations, and similar basic discrete maths stuff than for processing power. (Of course, it does take insight to realize that such concepts are relevant to the questions and processing power to figure out the answer within the time frame of the test, but I think that if I had never heard about XOR or used Sarrus’ rule I would have scored much worse.)
ETA: This is also why I suspect that the correlations between race and IQ aren’t entirely genetic. If Einstein’s twin brother had grown up in a very poor region with no education...