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Jurors’ Subjective Certainty And Standards Of Proof: The Role Of Emotion And Severity Of Charge In Subjective Probability Judgment, Yimoon Choi

Department of Psychology: Dissertations, Theses, and Student Research

Recent empirical research suggests that jurors struggle to understand and correctly apply the standard of proof. Many researchers have focused on methods to re-write jury instructions so that standards of proof are clearer and easier for jurors to understand. This dissertation suggests the fundamental cause of jurors’ confusion concerning standards of proof is that jurors may use different decision processes (intuitive decision processing or systematic decision processing) and decision indices (objective probabilistic judgment or subjective confidence) depending upon their transient emotions or the seriousness of charge.

Study 1 assessed whether experiencing particular emotions (sadness or anger) could change mock jurors’ …