Loftus and Palmer
- Created by: emma
- Created on: 11-03-14 20:00
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- Loftus and Palmer
- Aim
- how information supplied after an event influences a witnesses memory for that event
- If phrasing of question about an event effects a persons memory of that event
- Participants/ Method
- 1- 45 Washington Uni students split into 5 groups of 9
- 2- 150 Washington Uni students split into 3 groups of 50
- Laboratory experiments
- Independent measures design
- Procedure 1
- Shown 7 clips about car accidents from seattle police department and ever green safety council
- 5-30secs
- Asked to write an account of what they had just seen
- Asked critical question
- About how fast were the cars going when they
- smashed, collided, bumped, hit contacted each other
- About how fast were the cars going when they
- Shown 7 clips about car accidents from seattle police department and ever green safety council
- Results 1
- Smashed 40.8
- Collide 39.3
- Bumped 38.1
- Hit 34.0
- Contacted 31.8
- Procedure 2
- 60 second clip of a multiple car pile up
- Asked critical question about how fast were the cars going when they
- Smashed, hit each other
- control group not asked a question
- Smashed, hit each other
- One week later asked did you see any broken glass (no broken glass)
- wanted to see if the question would effect ppts memory for non existing events
- Test retest reliability
- Results 2
- Smashed 10.48mph 32% yes 68%no
- Hit 8mph 14% yes 86%no
- control 12% yes 88%no
- Conclusion
- Memory is made of what we perceive as happening at time and info we later receive
- Verbal labels result in cognitive amendment
- info gathered at time of event is modified by data gathered afterwards
- Reconstructive memory hypothesis
- we use schemas
- Aim
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