if you reduced a degree to the IQ test(s) for which it serves as a hyper-inefficient proxy
It's not just IQ. Conscientiousness is a huge part of the story in terms of both inputs and outputs - a smart but lazy person won't necessarily be a better worker than a hard worker with lower IQ, and university outcomes will more-or-less mimic that dynamic.
College may be mostly signaling, but there's a real signal there beyond what can be measured in a quick IQ test.
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It's not just IQ. Conscientiousness is a huge part of the story in terms of both inputs and outputs - a smart but lazy person won't necessarily be a better worker than a hard worker with lower IQ, and university outcomes will more-or-less mimic that dynamic.
College may be mostly signaling, but there's a real signal there beyond what can be measured in a quick IQ test.
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