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Eyewitness Memory01:22

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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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Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
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Using metamemory measures and memory tests to estimate eyewitness free recall performance.

Renan Benigno Saraiva1,2, Lorraine Hope1, Robert Horselenberg2

  • 1Department of Psychology, Faculty of Science, University of Portsmouth, Portsmouth, UK.

Memory (Hove, England)
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Metamemory assessments, like self-rated memory capacity, do not predict eyewitness recall accuracy. Confidence in memory recall is more stable than accuracy across different tests.

Keywords:
Eyewitness testimonyconfidencefree recallmemorymetamemory

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Area of Science:

  • Cognitive Psychology
  • Forensic Psychology

Background:

  • Eyewitness testimony is crucial in legal proceedings.
  • Understanding the factors influencing eyewitness recall accuracy is vital.
  • Metamemory, or memory about memory, may offer insights into recall performance.

Purpose of the Study:

  • To investigate the predictive value of metamemory measures for eyewitness free recall.
  • To examine the relationship between objective memory tests and eyewitness recall.
  • To assess the stability of accuracy and confidence across different memory tests.

Main Methods:

  • A mock witness study with 208 participants.
  • Metamemory assessment (self-rated capacity, strategy use).
  • Mock-crime video observation followed by free recall and objective memory tests (free recall, cued recall, face recognition, general knowledge).

Main Results:

  • Subjective memory capacity assessments did not correlate with eyewitness free recall performance.
  • Confidence and over/underconfidence showed some stability across memory tests, but accuracy was less stable.
  • Higher self-rated memory capacity was linked to a stronger confidence-accuracy relationship in free recall.

Conclusions:

  • Metamemory assessments, particularly self-rated capacity, have limited predictive power for eyewitness recall accuracy.
  • Performance stability varies across different memory domains and measures.
  • Confidence in eyewitness recall is not a reliable indicator of accuracy.