Thanks to you and to the other participants for your replies. I see a real opportunity here to further advance the psychology of human mental abilities by further investigating the distinction Keith Stanovich

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

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

draw between "intelligence" (I would say "IQ," but his terminology is standard) and "rationality." There are various forms of human cognition, and IQ tests miss many of them. Stanovich reports that there are mental tests that would reliably show, among adults with high IQ, who has executive function problems and who does not.