satt comments on Scientific misconduct misdiagnosed because of scientific misconduct - Less Wrong

44 Post author: GLaDOS 10 June 2011 02:49PM

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Comment author: satt 12 June 2011 02:28:16AM -2 points [-]

I think you don't have a clear picture of how highly functional low IQ people can be.

But how highly functional are low-IQ people on average? Looking at only the most functional low-IQ people wouldn't give a good idea of what to expect in general.

But how well would a 13 year score compared to 18 year old on a IQ test? Not that well I suspect.

The 13-year-old's raw score would generally be lower, but their IQ should be about the same as the 18-year-old's; IQ tests are age-normed nowadays.

Comment author: CaveJohnson 12 June 2011 07:55:58AM *  8 points [-]

But how highly functional are low-IQ people on average? Looking at only the most functional low-IQ people wouldn't give a good idea of what to expect in general.

My point was that different groups of people that might score low on IQ tests sometimes differ systematically from each other. In my last paragraph I suggest quite directly IQ 70 Black people are different from IQ 70 Whites and East Asians.

The 13-year-old's raw score would generally be lower, but their IQ should be about the same as the 18-year-old's; IQ tests are age-normed nowadays.

Well aware of this. Hence:

If the test got mislabelled as that of a 18 year old, what would be his estimated IQ? In abstract thinking he may not be that better than a 18 year old with a 70ish IQ but in many many other regards the test wouldn't do him justice by putting him in the same category.

Comment author: satt 12 June 2011 08:46:23AM 1 point [-]

Fair enough. I misread the bolded part of your post as just amplifying a more general point about younger people scoring lower on IQ tests.

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