Add Health participants were asked to rate their intelligence. They were also given a vocabulary test--a decent measure of IQ.
Here are the Pearson correlations between the two variables listed by race:
Correlation (sample size = 6,504)
American Indians .35
Overall, the correlations are low. People are not good at evaluating how smart they are. But the ability varies by race. Asians are the most accurate; blacks the least. Objectively smart groups (i.e., Asians, whites) assess their IQs with greater accuracy than low-IQ groups (Hispanics, blacks).
As I've done in the last couple posts, I correlated the skin tone of General Social Survey participants with IQ scores -- this time for ...
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...
Via a reader at iSteve, it looks like this might be the vocabulary test used by the General Social Survey. (Someone please tell me if I'...
Which factor reduces family size the most? Below are the standardized OLS regression coefficients for a sample of whites ages 40-59: Stand...