Sunday, August 09, 2009

Ethnicity and IQ heterogeneity: I was curious about IQ diversity among American ethnic groups. Selecting GSS groups with at least 100 respondents, I calculated the coefficient of variation, a normalized measure of dispersion, for Wordsum scores. Here are the numbers:


Coefficient of variation

Puerto Rican .491
Mexican .415
Black .381
Amerindian .359
Spain .338
Dutch .315
Polish .312
French .307
German .306
Italian .304
Irish .302
Scottish .294
English/Welsh .289
Czech .281
Swedish .280
Norwegian .280
Danish .270
Russian .264
Jewish .239

Racially mixed groups are the most IQ-diverse, and Scandinavians and Jews are the most homogeneous (many of those Russians are Jews).

With Mexican Americans especially, we should avoid talking about them like they are a monolithic group.
at
Labels: , ,

1 comment:

  1. Jokah Macpherson5:22 PM

    Is it just me, or do the ones with higher means tend to have less variation?

    ReplyDelete

Subscribe to: Post Comments (Atom)

Are gun owners mentally ill?

  Some anti-gun people think owning a gun is a sign of some kind of mental abnormality. According to General Social Survey data, gun owners ...

  • Most important predictor of reduced family size?
    Which factor reduces family size the most? Below are the standardized OLS regression coefficients for a sample of whites ages 40-59: Stand...
  • (no title)
    More on trust: As a follow-up to the last post, I wondered about the level of trust in Asian and Muslim countries. Based on World Values Sur...
  • More on Jewish ethnocentrism
    In the comments in the last post , some readers contended that Jews are not ethnocentric. Using the same question I used in the comments se...