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Mock juror interpretations of ecphoric confidence ratings


Sauer, J and Brewer, N and Palmer, M, Mock juror interpretations of ecphoric confidence ratings, American Psychology-Law Society Annual Conference, 6-8 March, 2014, New Orleans, Louisiana (2014) [Conference Extract]

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Can ecphoric confidence ratings help jurors evaluate eyewitness identification evidence? Compared to retrospective confidence ratings, ecphoric ratings provide additional information about witnessesí ability to discriminate between identified suspects and fillers. Experiments 1 and 1a manipulated identification/suspect confidence (90% vs. 50%) and discrimination information (good, poor, no information) betweenparticipants. Verdicts were influenced by suspect/identification confidence, but not discrimination information. However, within-participant manipulations of discrimination information (Experiment 2) affected verdicts. Thus, participants can utilise ecphoric confidence ratings, but may not intuit the discrimination information in isolation. Instructions on interpreting ecphoric ratings (Experiment 3) produced similar discrimination effects in a one-off (between-subjects) design.

Item Details

Item Type:Conference Extract
Keywords:Juror decision making, eyewitness identification evidence
Research Division:Psychology
Research Group:Applied and developmental psychology
Research Field:Forensic psychology
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in psychology
UTAS Author:Sauer, J (Associate Professor Jim Sauer)
UTAS Author:Palmer, M (Associate Professor Matt Palmer)
ID Code:95957
Year Published:2014
Deposited By:Psychology
Deposited On:2014-10-13
Last Modified:2015-08-17

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