I cannot offer a direct measure for this concept, but we all recognize this phenomenon in people whom we know – a combination of capacity for learning and logic, coupled with a higher level of education, that enables some to achieve "common sense."
Some of us can deduce some of the answers most of the time,
Some of us can deduce most of the answers some of the time,
But we can't deduce all of the answers all of the time
... or something along those lines.