PSYCHOLOGICAL AND COGNITIVE SCIENCES Retraction for “Signing at the beginning makes ethics salient and decreases dishonest self-reports in comparison to signing at the end,” by Lisa L. Shu, Nina Mazar, Francesca Gino, Dan Ariely, and Max H. Bazerman, which was first published August 27, 2012; 10.1073/pnas.1209746109 (Proc. Natl. Acad. Sci. U.S.A. 109, 15197–15200).
The editors are retracting this article and note that Simonsohn, Simmons, and Nelson (http://datacolada.org/98) have provided evidence to question the validity of the data in the article.
May R. Berenbaum
Editor-in-Chief