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Post-identification feedback effect
When eyewitnesses receive confirmatory feedback after giving their testimony, their confidence in their understanding and recall of the events is increased. This is a problem because jurors make decisions based on the confident of witnesses, which can be overinflated due to confirmatory feedback regardless of the actual validity.
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Post-identification feedback effect
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Learn After
The Case of Jennifer Thompson and Ronald Cotton
An eyewitness to a robbery is shown a police lineup. After some hesitation, she points to a person and says, 'I think that's him.' The detective administering the lineup responds, 'Excellent. You identified our main suspect.' When the eyewitness is later called to testify in court, she states with absolute certainty that the person she identified is the robber. Which psychological principle best explains the significant increase in her confidence?
An eyewitness to a robbery is shown a lineup of six photographs. After some hesitation, the witness points to photo #4 and says, 'I think that's him.' The detective administering the lineup responds, 'Excellent. You identified our main suspect.' Months later, during the trial, the same eyewitness testifies with 100% certainty that the person in photo #4 was the robber. Which of the following provides the best psychological analysis of the eyewitness's change in confidence?