You may want to think so, Janus, but non-biased IQ tests are ridiculously hard to create, if it’s even possible. Â Remember, a “pure” IQ test has to be founded on a widespread sample of data. Â So, you frequently get communication problems, like using words common in one area but not another, or worse, different intepretations of those words, particularly when testing between cultures. Â Some test-designers have tried to get around this by designing puzzle or picture based tests, but that can skew things as well. Â This is particularly the case if you’re trying to define intelligence. Â For example, are we simply talking about logical thought processes? Â Self-interested reasoning? Â Creativity? Â Particularistic conceptions or holistic conceptions? Â There’s just never been an effective definition of intelligence that will satisfy all the possible criteria. Â For example, how intelligent would you call an individual who has a successful musical career, but who constantly mismanages money and is always running away from creditors? Â This would be Mozart, by the way.
The test was originally administered by the French in the 19th century, I believe, under what are probably the best circumstances possible: Â a single school district with a homogenous data set (children from similar backgrounds all living in the same area). Â Even then, the test designer pointed out all the problems I mentioned. Â And of course, there is the history of eugenics that IQ tests are often associated with, which of course have been repeatedly disproven. Â Nevertheless, there is a…proclivity to treating IQ as something immutable and hard-wired even today, as evidenced by the importance of SAT scores in certain U.S. college admissions processes, for example.
As for the post that started this thread, I’ve seen the chart before, although adding in average incomes is a nice touch. And no, marine, you’re not correct. Not all polls are faulty. In fact, depending on how a poll is conducted, it’s a pretty scientifically and methodologically solid field called statistics. It’s less useful in examining this kind of question, but in general, at a certain point, a larger sample size actually distorts the sample’s reflection of the entire population. Below that point, however, you can get very accurate predictions of certain types of information/trends/etc. I’ll agree with you that IQ might not be the best test case (for all the reasons I point to above), but don’t be so quick to dismiss something without knowing or articulating the mechanics behind it.