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Perplexed comments on Scientific Self-Help: The State of Our Knowledge - Less Wrong

138 Post author: lukeprog 20 January 2011 08:44PM

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Comment author: Perplexed 29 January 2011 12:57:50AM 5 points [-]

we also know that above 145 IQ starts to be highly correlated with mental disease and personality disorders.

Do you have a citation for that? I tried Googling, but the results of that search strongly suggest that the claimed correlation is a myth (an urban legend?).

Comment author: datadataeverywhere 29 January 2011 01:14:55AM 3 points [-]

Good catch. Apparently "IQ ∝mental illness" is a thought I need to uncache. I just scanned the abstracts of a dozen or so highly-cited papers on the subjects, and it seems that while not overwhelming, the evidence weakly supports a negative correlation wtih mental illness.

I also just came up with a list of the 20 most intelligent people I can think of, living or dead (mostly dead). Not a majority, but a very disproportionate majority of that list suffered serious mental illnesses. Perhaps there is a correlation for very high IQ (almost impossible to statistically measure), or more likely, there is a confounding variable (fame, perhaps?).

Comment author: gwern 29 January 2011 02:55:03AM 0 points [-]
Comment author: datadataeverywhere 30 January 2011 04:24:25PM 0 points [-]

I found that along with the papers I was reading, and there were a few papers that supported such conclusions, but the majority do not, and I saw no reason to prefer the papers supporting the conclusion I was expecting to the larger number that did not, so I still consider the issue unresolved, leaning slightly toward "IQ ∝ mental health".