Date of Award

5-4-2018

Document Type

Thesis

Degree Name

Psychological Science, MS

First Advisor

Christopher Peters

Committee Members

David Saarnio; Jessica Curtis

Call Number

LD251.A566t 2018 H58

Abstract

Research shows that graphic evidence in the form of visual photographs leads to an increase in guilty verdicts, but other presentation formats, such as auditory (e.g. 911 calls), have not been thoroughly examined. With the technological advances today, it is important to study the effects of modernized evidence. The current research examines the effects of presentation format of evidence (visual or auditory) and evidence content (graphic or nongraphic) on juror opinions regarding the likelihood of defendant guilt. In the four-condition study, 222 participants read an identical trial summary and examined relevant evidence. Results showed that regardless of presentation format, graphic evidence resulted in more guilty verdicts. This suggests that courts should consider graphic evidence cautiously. The present findings can help the justice system gain a better perspective on what type of evidence sways the jury and develop safeguards to prevent admissibility of prejudicial evidence in court.

Rights Management

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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