Probative Value Of Absolute And Relative Judgements In Eyewitness Analysis

1981 Words 8 Pages
Clark, Steven E., Michael A. Erickson Jesse Breneman. 2011. "Probative value of absolute and relative judgments in eyewitness identification." Law and Human Behavior 35 (5): 364-380. Accessed September 14, 2016. doi: 10.1007/s10979-010-9245-1.
This peer-viewed report, published in the Law and Human Behavior journal, the official journal for the American Psychology-Law Society compares the two decision-making models of judgement, relative and absolute using the WITNESS model (a computerised memory and decision-making model that produces eyewitness response probabilities) in simultaneous and sequential lineups. This report seeks to understand which judgement model produces the higher probative value for eyewitness identification. The authors
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This study focuses on investigating the effects memory conformity between witnesses has on individual’s memory recall. This was achieved by having individuals each watch a manipulated video of the same event which contained a unique item, then had them interact with each other before performing a recall of events. The results found that 70% of individuals recalled unique items that weren’t in their videos. The authors argued that these findings demonstrate the susceptibility of human memory and the ability witnesses have to supplement their memories in exchange for information from another witness. The authors note that police should take care when weighing up the information given by eyewitnesses that have been in contact with other witnesses as their information may be compromised. As this study provides evidential information on the effect witness discussion has on individuals’ recall of events, it would be very useful in identifying the accuracy of eyewitnesses exposed to this in the current …show more content…
The main focus of this study is to test whether the 3 elements of the CA relationship (calibration, resolution and over/under confidence) can be weakened by exposure duration, retention interval and divided attention using two studies. The results found that limited exposure duration and delayed retention intervals have a hard-easy effect whereby the accuracy of the CA relationship was affected, but the confidence remained the same. This means that eyewitnesses with limited exposure duration or delayed retention intervals usually appear overconfident and less accurate. Divided attention manipulation, on the other hand, was found to have no significant influence on the accuracy of CA relationships. This article would prove useful in the present cases, specifically in relation to exposure duration, as it highlights eyewitnesses who have limited exposure time with a target usually are overconfident and

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