Is pupil size (at baseline) related to intelligence? Yes, but not very much. r ≈ .05.pic.twitter.com/xXqmoHPoKq
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Interesting. Data source? Engle's group finds a stronger association with more fluid intelligence measures: http://englelab.gatech.edu/2016/Tsukahara,%20Harrison,%20and%20Engle_2016.pdf …
Work in progress. Data is VES, n≈4400. https://www.cdc.gov/nceh/veterans/default1c.htm … We will be releasing this as an open dataset for all. :) @Kane_WMC_Lab
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I was lazy and only used AFQT for this, but will use g factor from ~20 tests later. http://rpubs.com/EmilOWK/VES_dataset_paper …
@Kane_WMC_Lab -
Maybe unreliable pupil var? What's your regression of pupil size on IQ? 1 SD in IQ -> .45 mm in earlier study.
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Read the link and you will see that left eye x right eye is r = .97.
@pnin1957@Kane_WMC_Lab -
That seems like a strong indication of unreliability, given how common anisocoria is: https://en.wikipedia.org/wiki/Anisocoria
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The unstandardized regression slope would be interesting as measurement error in DV doesn't bias it.
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I guess you can examine that when the data comes out. :) It is only intended to showcase the dataset.
@pnin1957@Kane_WMC_Lab -
Okay :) My prediction is that much of the discrepancy b/w your and earlier results may be due to unreliability
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Your suggestion fails the reversal test. http://andrewgelman.com/2016/01/26/more-power-posing/ …
@pnin1957@Kane_WMC_Lab - 3 more replies
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