loftus & palmer exp 1 (cognitve) Flashcards
what design was used?
laboratory experiment and independent measures design
what was the independent variable?
wording of the critical question
what was the dependent variable?
estimate of speed
what was the sample?
45 american students
they was placed in one of 5 conditions
what did they show the participants?
7 film clips of traffic accidents
what was participants asked to do once they watched the clip?
a questionnaire with questions about the accident
what was the 5 words used to describe the crash?
hit, smashed, contacted, collided, bumped
what was the mean estimate of speed for smashed?
40.5
mean estimate speed for collided?
39.3
mean estimate speed for bumped?
38.1
mean estimate speed for hit?
34
mean estimate speed for contacted?
31.8
what was the main conclusion?
the way a question is worded does distort recall
weakness of loftus and palmer lab experiment and why
lacks ecological validity as watching a film clip is not the same as a real life accident so there is no emotional involvement
why might loftus and palmer study lack population validity
students may not have been driving for long so may be worse at estimating speed