most teenagers go thru an eveningness phase, tho, and then most grow out of it again, so not an indicator of higher iq in teens.
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Your argument does not follow. That we see an increase for some age group does not imply that some pattern does not hold within that age group also.
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Is chronotype during adolescent age stable into adulthood?
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Presumably.
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no, it's not. that's what i'm telling you. most teenagers go thru an eveningness stage. but most can't (and don't) have higher than avg iqs.
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Again, formal fallacy. That an age group increases in some trait and then falls again later, does not imply lack of temporal _relative_ stability, nor that it lacks its correlates at that time.
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no, of course not. never said o'wise.
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Correlation of eveningness and IQ in the credible literature I could find looks too low to have a meaningful impact here. But, very interesting study. Many years too late for me, sadly
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It's about r = .20. OKCupid data confirms (multiple items).
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The non-Kanazawa numbers I saw were substantially lower than that. OKC data is so inherently corrupted by selection effects and response biases, not to mention poor instrumentation, as to be useless for social science research.
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Completely disproven assertion. :) Read the paper.
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As the mother of two teenagers, I would argue another benefit to society would be less unsupervised teenage free time in the late afternoon (if school went until 5).
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Maybe it's a kind of stealth intelligence levelling?
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This is such crap. Later start times just cater to teens staying up late texting and watching YouTube. "Early to bed, early to rise, makes a man healthy, wealthy, and wise."
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except of course the man who said that did not actually follow it himself...
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Thanks for bringing this up- RCT from us too! Not just 10 a.m. of course. Eveningness is an issude we've mentioned in 2015 and earlier this year too (Indentifying the best times for cognitive function) Paul Kelley
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Yes! A large scale and thorough study is needed. It's time to use the scientific method to solve social study theories like this.
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Too much theory. Night owls were produced by electric lighting and cheap electricity
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