Razib Khan One-stop-shopping for all of my content

April 17, 2012

If you are not too stupid you can be in Mensa

Filed under: Data Analysis,SAT,standardized tests — Razib Khan @ 4:30 am

Is 4-Year-Old as Smart as Einstein? Not Quite, Scientists Say:

One of the latest members of the high-IQ club Mensa is a mere 4 years old, with an IQ of 159 — but psychologists warn against pulling out the Albert Einstein comparisons just yet.

“All you’re doing with IQ testing is testing within a certain age group,” Lawlis told LiveScience, explaining, “You’re saying the 4-year-old is smarter than 99.5 or 99.8 of [her] age group, but that doesn’t mean you can compare to another age group.”

I’m a little confused here. It seems to me that the biggest issue with IQ tests given to very young individuals is expected variance in outcomes across tests. Raise your hand if you know a moderately bright person who “tested off the charts” as a very young person. If the charts are such that people test “off them,” I am skeptical of the precision of the tests being used.* My own hunch when someone tells me their IQ is that if they are moderately gifted they are reporting from the high range of distribution of scores they’ve received. Many gifted children have taken a fair number of standardized tests, so it isn’t too difficult to sample ...

April 16, 2012

Standardized test scores: math and verbal

Filed under: SAT — Razib Khan @ 10:48 pm

Prompted by miko’s skepticism about the utility of WORDSUM (a vocab test) across subcultures, I went and looked for SAT data. My assumption was that math sections are more “culture-fair” (though from what I gather ETS tries hard in various ways to be culture-fair in general). The data was not hard to find:

You can also check the ACT results.

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