If you do more IQ testing, are you going to find any more geniuses or idiots? No. The bell curve tells it all - its called normal distribution. You do a reliable sample and then calculate your confidence factor via the coefficient of correlation. So you don;t need to test very person, dog, horse or cat to know which way things are headed. People feel like they are entitle to having a 3 inch swab stuck up their nose.
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