IQ does not separate the star from the average performer. Every job has an IQ hurdle that people have to jump over, but whether you jump it and just barely clear it or whether you jump it and clear it by 30 extra points doesn’t seem to make a difference. People get mistakenly fixated on IQ as a predictor of success. There is data that says that when you look at the whole IQ range from zero to 180, that the better the IQ, the better the performance, but that’s because you are looking at a wide range of people. Once you get into a certain profession, that’s where the theory falls apart. Within professions – where you are talking about people who already have at least average, and more than likely above average IQs to start with – then IQ seems not to play a role.
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