Juror decision making,attitudes, and the hindsight bias

This study examines juror decision making in civil suits against police officers alleged to have engaged in illegal searches, using simulated case materials and mock jurors drawn both from adults called for jury service and a student subject pool. The experiment assesses the impact of a cognitive process (thehindsight bias) and of individual attitudes on awards and finds that both are related to juror decisions. We test a theoretical model that specifies that both attitudes and outcome knowledge exercise their influence upon the damage award decision by means of their impact on interpretation of testimony. Causal models of the decision-making process appear to support the role played by interpretation of evidence as a mediator between individual attributes and juror decisions.We are indebted to Reid Hastie, Tom Tyler, Phoebe Ellsworth, Jack Heinz, Robert Nelson, Rayman Solomon, and Bonnie Fisher for assistance with various aspects of the design, data collection, and analysis reported here. Financial support was provided by the American Bar Foundation, and the Center for Urban Affairs and Policy Research and the Dispute Resolution Research Center, both at Northwestern University.John D. & Catherine T. MacArthur Foundation.