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Eyewitness memory refers to the recollection of events by someone who has directly witnessed them, often serving as critical evidence in legal settings. This type of memory is commonly used in criminal cases where a witness describes details like a suspect's appearance, clothing, or behavior during a crime. However, despite its perceived reliability, eyewitness memory is prone to significant errors.
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Eyewitness confidence malleability: Misinformation as post-identification feedback.

Rachel Leigh Greenspan1, Elizabeth F Loftus2

  • 1School of Law, University of Pennsylvania.

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Summary
This summary is machine-generated.

Witness confidence is easily influenced by post-identification feedback. Even without feedback, confidence can increase over time, highlighting the need to record initial confidence verbatim.

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Area of Science:

  • Psychology
  • Forensic Psychology

Background:

  • Post-identification feedback significantly impacts witness confidence.
  • Witness confidence is a critical factor in legal proceedings.

Purpose of the Study:

  • To investigate the effects of typical and misinformation feedback on witness confidence.
  • To examine how feedback given one week after an initial identification influences retrospective confidence judgments.

Main Methods:

  • Two studies involving 907 participants recruited via Amazon Mechanical Turk.
  • Participants viewed a mock crime, made an identification, and reported confidence under unbiased conditions.
  • One week later, participants received confirming/disconfirming misinformation or typical feedback before a retrospective confidence judgment.

Main Results:

  • Misinformation feedback significantly altered perceived initial confidence.
  • Confirming feedback, both typical and misinformation, inflated recalled confidence.
  • Even control groups showed confidence inflation over time without feedback.

Conclusions:

  • Witness confidence is malleable and susceptible to post-identification feedback.
  • The timing and nature of feedback can distort memory of initial confidence.
  • Documenting verbatim witness confidence at the time of identification is crucial for accurate legal assessments.