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key principles
mind is like a computer
internal mental processes are key
Background
Marshall- humans are bad at estimating car speed mph
Type of experiment
Lab exp
Measure design
Independent measures design
Aim
interrogate the effect of leading questions and post event info on memory
Measures design
Independent measures design
Exp 1
IV: wording of critical question verb
“hit”
“smashed”
“collided”
“contacted”
“bumped”
DV: estimated speed given by Ps
Participants: 45 students 5 groups with 9 in each
Exp 2
IV: wording in critical question verb
“hit”
“smashed”
DV: “was there any broken glass?” leading question answers
Participants: 150 students 3 groups with 50 Ps
exp 1 results
hi