The Results of Deliberation
Columbia University - Law School
June 14, 2011
Social scientists have used mock juror studies to produce a vast body of literature showing how different variables influence juror decision-making. This paper presents a computer model that extrapolates findings about jurors to juries, showing how variables of interest affect the decisions not only of individuals but also of deliberative bodies. The computer model simulates jurors from a specified community, imputes initial votes to them conditional on a user-specified model, and uses Robert MacCoun’s new “social burden of proof” framework to predict the likelihood that the jury will come out for either side, given those initial votes. The paper then demonstrates the usefulness of the model by applying it to the Cultural Cognition Project’s study of the factors that influence the verdict in acquaintance rape cases. I argue that by extrapolating findings about jurors to juries, this model could prove useful to prosecutors, policy-makers, and legal scholars.
Number of Pages in PDF File: 67
Keywords: jury deliberation, cultural cognition, social influence, Monte Carlo, rape
Date posted: June 15, 2011 ; Last revised: August 23, 2013
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