"The statistical error that just keeps on coming"

Here's an article summarizing a common statistical error "so widespread it appears in about half of all the published papers surveyed from the academic psychology research literature."

http://www.guardian.co.uk/commentisfree/2011/sep/09/bad-science-research-error

From the article: "The same statistical errors – namely, ignoring the "difference in differences" – are appearing throughout the most prestigious journals in neuroscience"


Also, here's an article on a related subject: http://dionysus.psych.wisc.edu/coursewebsites/PSY710/Readings/MillerG2001a.pdf