Post event discussion

• Post-event discussion refers to any information discussed after the

  event has happened which could influence a person’s memory of the event. This could include discussions with other witnesses, news reports, or chats with friends/family members.
• Gabbert et al (Procedure)


  1. Laboratory experiment

  2. Experimental group - paired participants watched a video of the same simulated robbery but from different angles so that each participant could see elements in the event that the other could not

  3. Both participants discussed what they had seen on the video (post-event discussion) before individually completing a test of recall

  4. Control group - participants watched the simulated robbery but did not take part in a post-event discussion
• DV


  The research measured the number of incorrect items recalled by the participants as a result of the post-event discussion
• Gabbert te al (Conclusión/Findings)

  Findings:

  71% of the participants in the experimental group mistakenly recalled aspects of the event that they did not see in the video but had picked up in the post-event discussion.

  60% said that the girl was guilty, despite the fact they had not seen her commit a crime from the angle they had watched the video.

  0% of the control group made errors.

  Concluded that witnesses often go along with each other, either to win social approval or because they believe the other witnesses are right and they are wrong.
• Strength (Misleading info)


  It has real life application. The research has led to important practical uses for police officers and investigators.
• Limitation (misleading info)


  Tasks are artificial - their

  participants watched film clips of car accidents and therefore does not reflect real life.