Good review of a good book. The author, Nisbett, is very meticulous about citing primary research sources in his book, even though it is written for a popular readership.

Another good book on closely related topics is What Intelligence Tests Miss by Keith Stanovich.

http://yalepress.yale.edu/yupbooks/book.asp?isbn=97803001238...

http://www.amazon.com/What-Intelligence-Tests-Miss-Psycholog...