American IQ scores have rapidly dropped, proving the 'Reverse Flynn effect'
When IQ tests were invented folks didn&#x27;t know about tests, at least in the US. They were rural immigrants who could maybe read. So when asked logic questions, they would answer pragmatically and be &#x27;wrong&#x27;. That had some impact on perceived early low results.<p>As folks became better-read and educated they began to understand that IQ test questions were a sort of puzzle, not a real honest question. The answer was expected to solve the puzzle, not be right in any way.<p>E.g. There are no Elephants in Germany. Munich is in Germany. How many elephants are there in Munich?  A) 0  B) 1  C)2<p>Folks back then might answer B or C, because they figure hey there&#x27;s probably a zoo in Munich, bet they have an elephant or two there. And be marked wrong.