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2008

GW Law Faculty Publications & Other Works

Risk perception

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Full-Text Articles in Law

Biased Assimilation, Polarization, And Cultural Credibility: An Experimental Study Of Nanotechnology Risk Perceptions, Donald Braman, Dan M. Kahan, Paul Slovic, John Gastil, Geoffrey L. Cohen, Douglass A. Kysar Jan 2008

Biased Assimilation, Polarization, And Cultural Credibility: An Experimental Study Of Nanotechnology Risk Perceptions, Donald Braman, Dan M. Kahan, Paul Slovic, John Gastil, Geoffrey L. Cohen, Douglass A. Kysar

GW Law Faculty Publications & Other Works

We present the results from the second in a series of ongoing experimental studies of public perceptions of nanotechnology risks. Like the first study, the current one found that members of the public, most of whom know little or nothing about nanotechnology, polarize along cultural lines when exposed to information about it. Extending previous results, the current study also found that cultural polarization of this sort interacts with the perceived cultural identities of policy advocates. Polarization along expected lines grew even more extreme when subjects of diverse cultural outlooks observed an advocate whose values they share advancing an argument they …


The Future Of Nanotechnology Risk Perceptions: An Experimental Investigation Of Two Hypotheses, Donald Braman, Dan M. Kahan, Paul Slovic, John Gastil, Geoffrey L. Cohen Jan 2008

The Future Of Nanotechnology Risk Perceptions: An Experimental Investigation Of Two Hypotheses, Donald Braman, Dan M. Kahan, Paul Slovic, John Gastil, Geoffrey L. Cohen

GW Law Faculty Publications & Other Works

This paper reports the results of an experiment designed to test competing conjectures about the evolution of public attitudes toward nanotechnology. The rational enlightenment hypothesis holds that members of the public will become favorably disposed to nanotechnology as balanced and accurate information about it disseminates. The cultural cognition hypothesis, in contrast, holds that members of the public are likely to polarize along cultural lines when exposed to such information. Using a between-subjects design (N = 1,862), the experiment compared the perceptions of subjects exposed to balanced information on the risks and benefits of nanotechnology to the perceptions of subjects exposed …