Post-Event Discussion

• What is the Memory Contamination?

  When co-witbesses discuss a crime, the mix (mis)information from other witnesses with their own memories.
• What is memory conformity?

  Witnesses go along with each other to win social approval or because they believe the other witnesses are right.
• What is the research support?

  GABBERT 2003

  Participants watched a video of the same crime but filmed from different angles.

  • 71% mistakenly recalled aspects that they did not see in the video but had picked up in post-event discussion​.
• EVALUATION - Post Event Discussion

  + Research has real-life application​

  • Loftus and Palmer’s study used artificial materials​
  • There could be individual differences in accuracy of EWT.​
  • Lab studies suffer from demand characteristics​
  • EWT studies lack external validity