Citation

When Do Jurors Treat Absence of Evidence As Evidence of Absence?

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Abstract:

Can jurors draw appropriate conclusions from negative forensic evidence, such as the failure to find gunshot residue (GSR) on an alleged shooter? Experiment 1 found that undergraduates (N=572) undervalue negative GSR evidence, particularly when a negative result is merely probable rather than certain if a gun was fired. Experiment 2 presented the same materials to members of the jury pool at a county courthouse (N=164), and found the same pattern of results for jurors who were college graduates but a different (and even less appropriate) pattern for non-college graduates. Experiment 3, which also involved jury pool members (N=420), found similar results across a broader range of stimulus conditions. Legal and psychological implications will be discussed.
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Association:
Name: American Psychology - Law Society
URL:
http://www.ap-ls.org/


Citation:
URL: http://citation.allacademic.com/meta/p296163_index.html
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MLA Citation:

Thompson, William., Fowler, Nicci., Dioso-Villa, Rachel. and Velazquez, Brenda. "When Do Jurors Treat Absence of Evidence As Evidence of Absence?" Paper presented at the annual meeting of the American Psychology - Law Society, TBA, San Antonio, TX, Mar 05, 2009 <Not Available>. 2014-11-30 <http://citation.allacademic.com/meta/p296163_index.html>

APA Citation:

Thompson, W. C., Fowler, N. B., Dioso-Villa, R. and Velazquez, B. , 2009-03-05 "When Do Jurors Treat Absence of Evidence As Evidence of Absence?" Paper presented at the annual meeting of the American Psychology - Law Society, TBA, San Antonio, TX <Not Available>. 2014-11-30 from http://citation.allacademic.com/meta/p296163_index.html

Publication Type: Conference Paper/Unpublished Manuscript
Review Method: Peer Reviewed
Abstract: Can jurors draw appropriate conclusions from negative forensic evidence, such as the failure to find gunshot residue (GSR) on an alleged shooter? Experiment 1 found that undergraduates (N=572) undervalue negative GSR evidence, particularly when a negative result is merely probable rather than certain if a gun was fired. Experiment 2 presented the same materials to members of the jury pool at a county courthouse (N=164), and found the same pattern of results for jurors who were college graduates but a different (and even less appropriate) pattern for non-college graduates. Experiment 3, which also involved jury pool members (N=420), found similar results across a broader range of stimulus conditions. Legal and psychological implications will be discussed.


Similar Titles:
When confessions trump DNA: Relative impacts of self-report and DNA evidence on juror decisions

An Examination of How Expectancies Towards Science and Trial Evidence Impact Mock Jurors' Use of Complex Scientific Evidence

Absence among Members of Parliament: Evidence from the United Kingdom and Denmark


 
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