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Related Concept Videos

Eyewitness Memory01:22

Eyewitness Memory

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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.
One such error is memory distortion, which occurs because human memory does not function...
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Different methods, such as visual observance of metal-ion indicators, spectroscopic techniques, and potentiometric methods, can determine the endpoint of an EDTA titration.
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Statistical Significance01:37

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Once data is collected from both the experimental and the control groups, a statistical analysis is conducted to find out if there are meaningful differences between the two groups. A statistical analysis determines how likely any difference found is due to chance (and thus not meaningful). In psychology, group differences are considered meaningful, or significant, if the odds that these differences occurred by chance alone are 5 percent or less. Stated another way, if we repeated this...
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Confirmation Biases01:31

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The confirmation bias is the tendency to focus on information that confirms our existing beliefs and ignore information that is inconsistent with our expectations. For example, if you think that your professor is not very nice, you notice all of the instances of rude behavior exhibited by the professor while ignoring the countless pleasant interactions he is involved in on a daily basis. Have you ever fallen prey to the confirmation bias, either as the source or target of such bias?
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False Memories01:18

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False memories represent a cognitive distortion in which individuals recall events that did not happen, or remember them in an altered form. This phenomenon highlights the brain's constructive nature in processing and recalling memories, emphasizing that memory is not a perfect representation of past events but rather a dynamic reconstruction influenced by various factors.
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Hindsight bias leads you to believe that the event you just experienced was predictable, even though it really wasn’t. In other words, you knew all along that things would turn out the way they did. Can you relate this to the phrase "Hindsight is 20/20" now? 
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Eyewitness Evidence: Improving Its Probative Value.

Gary L Wells1, Amina Memon2, Steven D Penrod3

  • 1Iowa State University glwells@iastate.edu.

Psychological Science in the Public Interest : a Journal of the American Psychological Society
|July 10, 2015
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Summary
This summary is machine-generated.

Mistaken eyewitness identification contributes to wrongful convictions, as shown by DNA exonerations. Psychological research offers insights into improving eyewitness accuracy and legal procedures.

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Area of Science:

  • Forensic Psychology
  • Legal Psychology
  • Cognitive Psychology

Background:

  • The criminal justice system heavily relies on eyewitness testimony.
  • Forensic DNA testing has revealed numerous wrongful convictions due to mistaken eyewitness identification.
  • Psychological research has long questioned the reliability of eyewitness accounts.

Purpose of the Study:

  • To review DNA exoneration data highlighting the role of eyewitness error.
  • To explain the psychological factors contributing to eyewitness inaccuracies.
  • To discuss how psychological science can improve eyewitness evidence reliability.

Main Methods:

  • Analysis of DNA exoneration case data.
  • Review of experimental psychological research on eyewitness memory.
  • Examination of system variables and estimator variables affecting accuracy.

Main Results:

  • Mistaken eyewitness identification is a leading factor in wrongful convictions.
  • Psychological research indicates eyewitness accuracy is influenced by both controllable (system) and uncontrollable (estimator) variables.
  • Current legal procedures for collecting eyewitness evidence are often suboptimal.

Conclusions:

  • Psychological science provides critical insights into eyewitness fallibility.
  • Procedural reforms based on psychological research can enhance the accuracy of eyewitness evidence.
  • Further integration of psychological science is needed to improve the justice system's handling of eyewitness testimony.