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The main meta-analysis that comes to my mind is that by Poropat (2009). It examines correlations between Big Five, general intelligence, and academic grades. The basic conclusion is that both conscientiousness and intelligence are good predictors of academic grades. Other meta-analyses show that intelligence is not really correlated with conscientiousness (e....


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There are a few ways that you could answer this question. First, IQ is defined with a mean of 100 and a standard deviation of 15. But this is a normative score and relative to a given target population typically defined by time, geography, and various inclusion criteria. In particular, IQ scores have increased over time (i.e., Flynn effect). So by this ...


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