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> The part I like: the linearity in IQ vs ability is driven by the low end. People who have cognitive challenges cannot complete the test and cannot perform the
by JamesBarney 7y ago
> The part I like: the linearity in IQ vs ability is driven by the low end. People who have cognitive challenges cannot complete the test and cannot perform the task. At the high end the correlation disappears.
If this were true you would expect the average IQ of really accomplished individuals to be 110. But this isn't the case, if you look at Supreme Court Justices, scientists, CEO's they all have average IQs higher than what would be expected if IQ only correlated at the low end.
- omarhaneef 7y agoI don't know the average IQ of a CEO or a supreme court justice. Do you know what it is? Why 110? 1 sd is 115, 2sd would be 130. Anyway for supreme court justices we have a straightforward explanation: the schools they are selected from (Yale and Harvard, primarily) themselves use a proxy IQ test (the SATs, or LSATs or whatever) to select for.
- JamesBarney 7y agoI saw numbers for supreme court justices a couple years ago but I can't find it. https://pumpkinperson.com/2015/07/26/anne-roes-study-of-extremely-eminent-scientists/ https://pumpkinperson.com/2015/07/26/anne-roes-study-of-extr... Says Nobel prize winners had an average IQ of 155, which is a 1 in 4000 score that couldn't be driven by just sub 100 effects. Hard to find IQ scores on really high performers, I guess it's hard to convince a CEO or a supreme court justice to take an IQ test.