YALE LAW SCHOOL Research Paper #205 Cultural Cognition of Scientific Consensus by Dan M. Kahan, Hank Jenkins-Smith and Donald Braman This paper can be downloaded without charge from the Social Science Research Network Paper Collection at: http://papers.ssrn.com/abstract#1549444 Cultural Cognition of Scientific Consensus Journal of Risk Research, in press advance on-line publication at doi: 10.1080/13669877.2010.511246 Dan Kahan Hank Jenkins-Smith Yale Law School University of Oklahoma Donald Braman George Washington Law School Authors’ Note. Research for this paper was funded by the National Science Foundation, Grant SES 0621840; by the Oscar M. Ruebhausen Fund at Yale Law School; and by the Center for Applied Social Research at the University of Oklahoma. We gratefully acknowledge comments on an earlier draft by Jay Koehler, Lisa Larrimore Ouellette, Mark Peffley, Jeffrey Rachlinski, Mike Spagat, and Maggie Wittlin. Correspondence concerning this article should be addressed to Dan M. Kahan, Yale Law School, PO Box 208215, New Haven, CT 06520. Email:
[email protected]. Abstract Why do members of the public disagree—sharply and persistently—about facts on which expert scientists largely agree? We designed a study to test a distinctive explanation: the cultural cognition of scientific consensus. The “cultural cognition of risk” refers to the tendency of individuals to form risk perceptions that are congenial to their values. The study presents both correlational and experimental evi- dence confirming that cultural cognition shapes individuals’ beliefs about the existence of scientific con- sensus, and the process by which they form such beliefs, relating to climate change, the disposal of nuc- lear wastes, and the effect of permitting concealed possession of handguns.