Nuclear energy: The accuracy of policy makers' perceptions of public beliefs.

hysical risks. The policy makers' own attitudes were found to be significantly more favorable than those of the total public sample; this was primarily because the policy makers' beliefs about psychological risks made a significantly smaller negative contribution to attitude, and their beliefs about environmental risks made a significantly larger positive contribution. Tkhe policy makers were able to shift their own (personal) responses in the directions indicated by their role-play assignments to reproduce accurately the overall attitudes of the PRO and CON groups on this controversial topic, although there was a tendency to overestimate the positive attitudes of the PRO nuclear public. In terms of the underlying belief dimensions, however, there was a significant faiure to recognize the extent to which issues of psycholo;gical significance contribute negatively to the attitudes of both PRO and CON public groups. The policy makers underestimated the negative value both groups assigned to these risks as well as the extent to which the public believed that nuclear energy would lead to such risks.