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Postidentification feedback affects real eyewitnesses.

Daniel B Wright1, Elin M Skagerberg

  • 1University of Sussex, Brighton, United Kingdom. danw@sussex.ac.uk

Psychological Science
|April 12, 2007
PubMed
Summary
This summary is machine-generated.

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Eyewitness confidence in real crimes can be influenced by feedback. Recording memory assessments before feedback is crucial for accurate eyewitness identification research.

Area of Science:

  • Psychology
  • Forensic Science
  • Cognitive Science

Background:

  • Laboratory studies suggest eyewitness confidence predicts accuracy, but can be manipulated by post-identification feedback.
  • Previous research primarily used simulated eyewitness scenarios.

Purpose of the Study:

  • To investigate the effect of post-identification feedback on real eyewitnesses' memory and confidence.
  • To determine if meta-memory variables can differentiate suspect from filler identifications before feedback.

Main Methods:

  • 134 eyewitnesses to real crimes participated in UK identification lineups.
  • Memory-related questions were administered before and after participants received feedback on their identification choice (suspect or filler).
  • Analysis focused on differentiating identification accuracy based on pre-feedback responses and the impact of feedback on memory reports.

Related Experiment Videos

Main Results:

  • Pre-feedback responses to memory questions reliably distinguished between accurate (suspect) and inaccurate (filler) identifications.
  • Post-identification feedback significantly altered eyewitnesses' memory-related responses.
  • The findings confirm that feedback influences real eyewitnesses' perceptions.

Conclusions:

  • Post-identification feedback demonstrably affects real eyewitnesses, impacting their memory reports.
  • It is essential to record eyewitness meta-memory variables prior to providing any feedback to ensure data integrity.
  • This highlights the need for careful procedural design in eyewitness identification investigations.