(this is just one citation among many for this often-replicated result) and digit span is not related to important cognitive functions that sum up to "rationality" as distinct from IQ.
But in general about articles in the popular press posted to Hacker News about IQ, what I say is that the obligatory link for any discussion of a report on a research result like that is the article by Peter Norvig, director of research at Google, on how to interpret scientific research.
http://www.eric.ed.gov/ERICWebPortal/custom/portlets/recordD...
(this is just one citation among many for this often-replicated result) and digit span is not related to important cognitive functions that sum up to "rationality" as distinct from IQ.
http://yalepress.yale.edu/yupbooks/book.asp?isbn=97803001238...
http://www.amazon.com/What-Intelligence-Tests-Miss-Psycholog...
But in general about articles in the popular press posted to Hacker News about IQ, what I say is that the obligatory link for any discussion of a report on a research result like that is the article by Peter Norvig, director of research at Google, on how to interpret scientific research.
http://norvig.com/experiment-design.html
Check each news story you read for how many of the important issues in interpreting research are NOT discussed in the story.