The sample consisted of mid-level leaders from multinational private-sector companies.
This sort of pre-filtered sample suffers from issues like Berkson’s paradox. For example, for those managers who have IQ>120, why are they underperforming? Perhaps for lack of leadership qualities, which they make up for on intelligence. On the flip side, for managers who have unimpressive IQs (as low as <100), why are they so successful? This is why longitudinal samples like SMPY are so much more useful when you want to talk about what high IQs are or are not good for. If you run this sort of cross-sectional design, you find things like “Conscientiousness is inversely correlated with intelligence” (it’s not).
This isn’t really my field, and I see your point. The poster asked for other studies so I linked a study I’d recently seen. It’s less about me endorsing the study than about trying to provide an entry point into the relevant literature.
This sort of pre-filtered sample suffers from issues like Berkson’s paradox. For example, for those managers who have IQ>120, why are they underperforming? Perhaps for lack of leadership qualities, which they make up for on intelligence. On the flip side, for managers who have unimpressive IQs (as low as <100), why are they so successful? This is why longitudinal samples like SMPY are so much more useful when you want to talk about what high IQs are or are not good for. If you run this sort of cross-sectional design, you find things like “Conscientiousness is inversely correlated with intelligence” (it’s not).
This isn’t really my field, and I see your point. The poster asked for other studies so I linked a study I’d recently seen. It’s less about me endorsing the study than about trying to provide an entry point into the relevant literature.