Mathematical Models of Juror and Jury Decision-Making

The State of the Art
  • Bernard Grofman
Part of the Perspectives in Law & Psychology book series (PILP, volume 2)


The jury is a remarkable example of the use of groups to make decisions. A jury is composed of untrained citizens, drawn randomly from the eligible population, convened briefly for a particular trial, entrusted with great official powers, permitted to deliberate in secret, to render a verdict without explanation, and without any accountability then or ever, to return to private life. In that such a firm institution is composed of such fluid members, and that these ordinary citizens judge criminal responsibility in place of professional agents of the state, the jury is a unique political institution. More than representative legislatures and popularly elected executives, it is the jury that characterizes democratic political systems. (Saks, 1977, p. 6)


Mock Juror Innocent Defendant Jury Verdict Member Jury Guilty Defendant 
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Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • Bernard Grofman
    • 1
  1. 1.School of Social SciencesUniversity of CaliforniaIrvineUSA

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