loftus and palmer evaluation AO3 experiment one Flashcards
what is a strength of loftus and palmer
standerdised procedure
how was the procedure standerdised
study conducted in a highly controlled lab setting meaning all 45 students recived the same procedure of watching 7 short film clips of a car crash and all recived the same base question of “how fast was the cars going when they…..each other?” however the verb was replased with hit/smash/collided depending on the group
how does this support loftus and palmer
t/f the study is easily replicable to establish consistant findings on leading questions affecting recall of EWT thus increasing the
what does standerdised procedure increase
the validity
the study collects quantative data how is this beneficial
gie two points
quantative data
objective
why is objective a positive point
researchers calculated the mean speed each group predicted based on the word they where asked in the question. the study gathered qualative data which is objective evidance on the affect the effect of leading questions on EWT
how does this support loftus and palmer
t/f increasing the validity of loftus and palmers findings that smashed had a mean score of 40.5 mph compared to contacted which had 31.8mph thus increasing the validity of loftus and palmers findings on how leadin quesstions affect EWT
how is loftus and palmers study yeilding quantitative data a positive
loftus and palmers study collected quantative data in the mean forms of the speed of predicted crash based off words used e.g smashed was 40.5. qualative data is easy to analyse and objectiveh
how does this support loftus and palmer
t/f increasing the validity of the findings of loftus and palmer and the effect of leading questions on EWT
whatis a weakness of loftus and palmer
ecological validity
why does loftus and palmers study lack ecological validity
the EW watech the seven short video clips of a car crash in the highly controlled artificial setting of a labatory. this is unrepresentive of a real crime or carcrash.
what does this reduced about loftus and palmer
generalisability
how does it oppose
t/f findings on leading questions affecting EWT are unreprasentative of everyday EWT on crimes/car crashes and so the findings are ungeneralsiable to everyday EWT
what is anouther opposing evidance for EWT
population validity
why is population validity an issue
loftus and palmer used 45 pp who where oly students from washington uni, in america