Factors affecting the accuracy of EWT Flashcards
What is misleading info?
Info that suggests a desired response - able to create false memories
What are leading questions?
Questions that increase the likelihood that someone’s schemas will influence them to give a desired answer.
What is post-event discussion
misleading info being added to a memory after the event has occurred, with research indicating that false memories can be stimulated by misleading post-event
What is the procedure for experiment one of Loftus and Palmer’s study?
45 uni students shown 7 clips of car crashes.
After each incident they wrote account of what they could recall & answered specific questions.
5 conditions, varying on which verb sued in key question - based on the speed of the cars. Estimation of speed recorded.
What is the procedure for experiment 2 of Loftus and Palmer’s study?
150 pp’s viewed video of car crash.
50 were asked key q with the word ‘smashed’ in it, 50 with ‘hit’ & control group of 50.
A week later they were questioned about their memory of the event - did u see any broken glass?
What are the findings of experiment 1 of Loftus and Palmer’s study?
As the intensity of the verb used in the key Q increased, so did the estimation of the speed of the cars
What are the findings of experiment 2 of Loftus and Palmer’s study?
PP’s were twice as likely in the ‘smashed’ condition to recall the false memory of broken glass.
What are the conclusions of Loftus & Palmers study?
exp 1 showed misleading info in the form of leading Qs can affect memory recall.
exp 2 showed that misleading info in the form of post-event info can affect memory recall of eyewitnesses
Give evaluations of Loftus & Palmer’s study
Lab experiment centred on artificial task - lacks mundane realism.
Results may be due to demand characteristics as they may have just given the answer they thought the researches wanted.
What is the procedure for Loftus & Pickrell’s study?
120 students who saw Disneyland in childhood divided into 4 groups and told to answer Q’s about the trip.
Group 1 - read fake Disneyland ad with no cartoon characters
Group 2 - read fake ad featuring no cartoon characters & shown cardboard figure of bugs bunny
Group 3 - read fake Disneyland ad featuring bugs bunny
Group 4 - read fake ad with bugs bunny and saw cardboard figure of him
What are the findings of Loftus & Pickrell’s study?
30% in group 3 & 40 % in group 4 remembered or knew they’d met bugs bunny when visiting Disneyland.
Those exposed to misleading info about bugs bunny were more likely to relate bugs bunny to other things at Disneyland not in the ad.
What are the conclusions of Loftus & Pickrell’s study?
Post event info leads to false memories
Verbal and pictorial suggestions can contribute to false memories
Memory is changeable and vulnerable to inaccuracy.
Evaluate Loftus & Pickrell’s study
Uses memory of real life event rather than something watched on video.
Evaluate misleading info as factor affecting accuracy of EWT
PP’s don’t expect to be deliberately misled by the researchers so inaccurate recall is expected as pp’s believe the researches to be telling the truth.
Misleading info affects only unimportant aspects of memory, memory from important events isn’t as easily distorted when the info is obviously misleading
What is the weapon’s effect and who was it proposed by?
Witnesses to violent crimes focus on the weapons being used rather than the culprits face, affecting the ability to recall events. Loftus.