Lay Understanding (and Misunderstanding) of Quantitative Statements about the Weight of Forensic Evidence

50 mins 21 secs,  92.11 MB,  MP3  44100 Hz,  249.77 kbits/sec
Share this media item:
Embed this media item:


About this item
Image inherited from collection
Description: Thompson, W (University of California, Irvine)
Wednesday 31st August 2016 - 09:30 to 10:20
 
Created: 2016-09-06 12:16
Collection: Probability and Statistics in Forensic Science
Publisher: Isaac Newton Institute
Copyright: Thompson, W
Language: eng (English)
Distribution: World     (downloadable)
Explicit content: No
Aspect Ratio: 16:9
Screencast: No
Bumper: UCS Default
Trailer: UCS Default
 
Abstract: Co-author: Rebecca Grady (University of California, Irvine)

The explanations that forensic scientists offer for their findings in reports and testimony should meet two important requirements: first, they should be scientifically correct—warranted by the underlying findings; second, they should be understandable to the lay audiences, such as lawyers and jurors, who will rely upon the reports and testimony. This presentation will describe a series of studies exploring lay reactions to quantitative statements about the weight of forensic evidence. Key issues examined include the way in which various formats for describing the weight of forensic evidence affect: (1) people’s sensitivity to important variations in the weight of the forensic evidence; (2) people’s susceptibility to fallacious misinterpretation of forensic evidence; and (3) the logical coherence of judgments made on the basis of forensic evidence. Implications of this research for forensic practice and legal policy will be discussed.
Available Formats
Format Quality Bitrate Size
MPEG-4 Video 640x360    1.94 Mbits/sec 732.32 MB View Download
WebM 640x360    583.95 kbits/sec 215.20 MB View Download
iPod Video 480x270    522.23 kbits/sec 192.40 MB View Download
MP3 * 44100 Hz 249.77 kbits/sec 92.11 MB Listen Download
Auto (Allows browser to choose a format it supports)