Doctor of Philosophy, The Ohio State University, 2019, Communication
Research on jury decision making is interesting because there is an expectation by the justice system that if jurors take their duty seriously and put effortful cognition into their task, they should be uninfluenced by irrelevant information and reach a fair decision. However, research has shown that although jurors think thoroughly and try to reach a fair decision, they are susceptible to a variety of irrelevant factors. There have been multiple models of jury decision making that have been proposed to account for how jurors reach their decisions, but none seem to be able to fully explain the wide range of irrelevant factors that influence jurors. However, this dissertation argues that cognitive-experiential self-theory (CEST) is a model of human decision making that also should be applied to juries.
This dissertation sets out to give support to CEST as a model of jury decision making. CEST is a decision making theory that posits that humans have two systems of information processing. The first system is a rational system that engages in effortful cognition. The second system is the experiential system that is more based on emotion. This dissertation will support CEST as a model of jury decision making by showing the types of information that are considered based on how jurors process information, how these considerations will influence decisions, which jurors have the ability to update decisions based on new information, and that this model can make accurate predictions regarding these three areas at the state and trait-level.
A pretest and study 2 both support CEST's assertion that people can be engaged two different types of processing at the same time. That is, information processing is not simply a tradeoff between effortful cognition and quick, heuristic based cognition. Because of this, people who are engaged in rational thought can still be influenced by irrelevant factors via the experiential system.
Both studies show that jurors will (open full item for complete abstract)
Committee: Robert Garrett (Advisor); Zheng Wang (Advisor); Emily Moyer-Guse (Committee Member)
Subjects: Communication