Gene Expression
recently put up a brilliant post showing data on the
GSS‘s WORDSUM scores correlated to various demographic data points, such as
educational attainment, political ideology, religious preferences, etc. From
the post:
A few years ago I put up a post, WORDSUM & IQ & the correlation, as
a “reference” post. Basically if anyone objected to using WORDSUM, a
variable in the General Social Survey, then I would point to that post and
observe that the correlation between WORDSUM and general intelligence is
0.71. That makes sense, since WORDSUM is a vocabulary test, and verbal
fluency is well correlated with intelligence.
But I realized over the years I’ve posted many posts using the GSS and
WORDSUM, but never explicitly laid out the distribution of WORDSUM scores,
which range from 0 (0 out of 10) to 10 (10 out of 10). I’ve used categories
like “stupid, interval 0-4,” but often only mentioned the percentiles in the
comments after prompting from a reader. This post is to fix that problem
forever, and will serve as a reference for the future.
You should definitely read
the entire post, but here are 10 interesting data points that leapt at me:
[ Caution: oversimplification ahead ]
-
As IQ scores have indicated for decades, women are more weighted towards
the center in intelligence, i.e. fewer lows and highs. -
The outliers for education are high school and graduate school, i.e.
going or not going to one of those affects your scores the most. Other
levels had very similar curves. -
People in New England area are smart.
-
Liberals are the breakout political ideology in terms of top-end
vocabulary/IQ. -
Politically, “independent” seems to mean intellectually lazy, i.e. not
having an opinion one way or another is more likely to be a sign of
lower intellect rather than “rising above the pettiness”. This mixes
well with a number of other datasets that I’ve seen on the topic. -
The breakout groups for religious ideology is atheists and agnostics
(see the main graph above). Naturally, that’s a stunner for
me. Unsupervised Learning — Security, Tech, and AI in 10
minutes… Get a weekly breakdown of what’s happening in security and
tech—and why it matters. -
Among religious groups, Jews make everyone look like simpletons. But we
knew that already. -
For interpretation of the Bible, the data couldn’t be more stark (unless
it was beheaded): the “word of god” crowd scored the absolute lowest,
and the “book of fables” group scored the absolute highest. Again,
highly unexpected. -
For financial success information, which is one of the most interesting
data points since it ties WORDSUM’s g correlation to a practical
benchmark that everyone understands, i.e. “how much money you make”, the
data is quite interesting. Essentially, the average wealth types are
hyper-focused toward the center of IQ, while the lowest financial
achievement is from those who score lowest and those who make over 100K
score very high. A really interesting point here is for those who make
another step above: as I’ve seen in numerous other places, this often
tends to be a matter of privilege rather than merit, so that’s why the
scores don’t jump away again like those with graduate degrees. Note to
English teachers: hang this graph in your classrooms. -
For the evolution question, the graph appears to have been created by a
writer for the Jon Stewart show–only it wasn’t. The “developed from
animals” question breaks the camps violently at the upper end of the
spectrum in a visual that I think should accompany any evolution debate.
Overall, the post offers a compelling set of data that will no doubt serve
as a point of reference in many future discussions. It’s both kindle for,
and a culmination of, a thousand interesting conversations.
Be sure to read the whole thing, including his methodology for extracting
the data:http://blogs.discovermagazine.com/gnxp/2012/04/verbal-intelligence-by-demographic/
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