I agree that IQ is plenty interesting by itself. My goal with this article was to explore the boundaries of that usefulness and explore the ways in which the correlations break down.
The Big 5 personality traits have a correlation with some measures of success which is independent of IQ. For example, in this paper:
Consistent with the zero-order correlations, Conscientiousness was a significant positive predictor of GPA, even controlling for gender and SAT scores, and this finding replicated across all three samples. Thus, personality, in particular the Conscientiousness dimension, and SAT scores have independent effects on both high school and college grades. Indeed, in several cases, Conscientiousness was a slightly stronger predictor of GPA than were SAT scores.
Notably, the Openness factor is the factor that has the strongest correlation with IQ. I’m guessing Gwern has more stuff like this on his website, but if someone makes the claim that IQ is the only thing that matters to success in any given field, they are selling bridges.
The Big 5 personality traits have a correlation with some measures of success which is independent of IQ. For example, in this paper:
Notably, the Openness factor is the factor that has the strongest correlation with IQ. I’m guessing Gwern has more stuff like this on his website, but if someone makes the claim that IQ is the only thing that matters to success in any given field, they are selling bridges.