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The effect of investigational context on eyewitness memory

By David Taylor


The full text of this dissertation is available only to University of Leicester members. Please log in with your CFS username and password when prompted.Grain-size regulation (precision of response) has been shown, in previous research, to be important in understanding how an eyewitness regulates the information they produce about witnessed events. These experiments attempted to extend the methodology of previous research by testing grain-size regulation in conditions more closely resembling those experienced by real-world witnesses and by testing whether grain-size regulation plays an important role in deciding how people respond to narrative questioning. Most of the results gathered did not achieve significance; however participants who were one of multiple witnesses to footage of a robbery attempted more fine-grained responses than participants who were the only witness to the same incident, in relation to reporting auditory memory. The relationship between confidence, number of witnesses and choice of grain-size of response was also investigated; there was no real evidence of any significant relationship between confidence, grain-size and number of witnesses, or between confidence and grain-size alone. The results show very limited support for the hypothesis that situational factors can result in witnesses altering the regulation of their grain-size in a real world environment, and no real evidence of grain-size regulation when narrative reporting is utilised.University of Leiceste

Year: 2009
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