cognitive classic evidence - loftus and palmer Flashcards
(13 cards)
what were the aims of lofts and palmers second experiment
to detect whether there were false memories created by the brain when different wording was used in an interview
what was the 1st experiment of lotus and palmer
they took 45 american uni students, split into 5 groups of 9. all showed videos of the same car crash. they then answered a questionaire, all the same except the wording of the question ‘about how fast were the cars going when they ____ each other’ then recorded the speed they answered
what was the question that changed called in l + p’s 1st experiment
the CRITICAL QUESTION ‘about how fast were the cars going when they ___ each other’
what were the 5 possible verbs that changed in the critical question of l + p’s 1st experiment
it was either hit, smashed, collided, bumped or contacted
what type of experiment was l+p
a lab experiment
what design was used in l+p’s 1st experiment
independent groups design, the 9 people in all 5 groups did the same condition
what were the findings of experiment 1 of l+p
SMASHED - 40.8 mph
COLLIDED - 39.3 mph
BUMPED - 38.1 mph
HIT - 34mph
CONTACTED - 31.8mph
what verb elicited the highest rating of speed in experiment 1 of l+p
smashed - 40.8
what verb elicited the lowest rating of speed in experiment 1 of l+p
contacted - 31.8
aims of l+p 1st experiment
to investigate the effects of leading questions on the estimate of speed
briefly outline what happened in l+p’s second experiment
150 american uni students split into 3x50
shows a short film of multi vehicle car crashes, then asked questions
the critical question was either ‘how fast were the cars going when they smashed into each other’
‘how fast were the cars going when they hit each other’
OR (g3 - control group) were not asked about speed
1week later all p’s returned and were asked more Q including ‘did you see any broken glass’ (there was none)
findings of l+p second experiment
response smashed hit. control
yes 16. 7. 6
no. 34. 43. 44
conclusion of l+ps second experiment
participants in the ‘smashed’ condition were more than twice as likely to report seeing broken glass than those in the ‘hit’ or control condition.
this shows that the verb used in the original question influenced whether the participants thought they had seem broken glass
