Memory - Eyewitness Testimony & Misleading Questions Flashcards
What is misleading information?
Incorrect information given to an eyewitness usually after the event usually in the form of leading questions & post event discussion
What is a leading question & how does it affect eyewitness testimony?
A question which is phrased in a way that suggests a certain answer from the eyewitness which can cause them to answer inaccurately
What is post event discussion & how does it affect eyewitness testimony?
When eyewitnesses discuss information with each other after the event has taken place. It can affect accurate recall of the event
Who did research into leading questions?
Loftus & Palmer
What was the aim of Loftus & Palmer’s experiment?
To assess the extent to which participants’ estimates of the speed of cars involved in accidents witnessed on video could be influenced by misleading questions
What was the procedure of experiment 1?
45 university students shown 7 video clips of car crashes
After each clip they were asked to write an account of what they could recall & asked a key question about the speed of the cars with 5 conditions (9 participants in each) with each condition being asked a different verb
Participants estimations of the speed were then recorded
What was the key question & different verbs asked in each?
“About how fast were the cars going when they ‘contacted/hit/bumped/collided/smashed’ hit each other?”
What were the findings of experiment 1?
As the intensity of the verb used in the key question increased so did the estimated speed of the cars
What was the procedure of experiment 2?
150 students viewed a video of a car crash
50 asked key question with the verb ‘smashed’
50 asked key question with the verb ‘hit’
Control group (50) asked no question
1 week later they were question about their memory of the event & they were being asked ‘did you see any broken glass?’
Number of participants recalling broken glass was recorded
What were the findings of experiment 2?
Participants were 2x as likely in the smashed condition to recall the false memory of broken glass
What was the conclusion for experiment 1?
Misleading information in the form of leading questions can affect memory recall of eyewitnesses
What was the conclusion for experiment 2?
Misleading information in the form of post event information can affect memory recall of eyewitnesses
What are some limitations of Loftus & Palmer’s experiments?
Lab experiment -> artificial tasks (lack of generalisability)
Witnessing car crashes can have an emotional affect then they would recall differently
Demand characteristics -> participants may have been recalling what they thought the researchers wanted to hear
Who did an experiment into post event discussion?
Gabbert et al
What is the procedure of Gabbert’s experiment?
Participants studied in pairs & each participant watched a video of the same crime but filmed from different POVS. Both participants then discussed what they had seen before individually completing a test of recall