Loftus and Palmer

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  • Created by: Shannon
  • Created on: 22-01-14 14:14
1.Date and aim of lofus and palmer?
1974 and to investigate how information supplied after an event, influences a witness's memory for that event.
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1.Participants in experiment 1?
45 students of the university of washington
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1.how many film clips were they shown?
7 of car accidents
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1.what were they asked to do?
write an account of the accident they had just seen. They were also asked to answer some specific questions but the critical question was to do with the speed of the vehicles involved in the collision.
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1.how many conditions were there?
5 (each with 9 participants)
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1.what were the 'critical' words?
Smash, hit, collided, bumped, contacted
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1.results (average estimate of speed mph)
Smashed: 40.8. collided: 39.3. Bumped: 38.1. Hit: 34.0. Contacted: 31.8
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2. How many participants in experiment 2?
150 students
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2. How many conditions were there?
3 (50 in each)
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IV on both
critical word
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2. Method
viewed a short (one minute) film which contained a 4 second scene of a multiple car accident, and were then questioned about it
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2. what question was asked?
'How fast were the cars going when they ____ each other??
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2. Critical words
hit, smashed, and one group was not asked about the speed oft he car.
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2. A week later what happened?
participants returned and asked if they saw any broken gass in the video (no broken glass in film)
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2. results:
Response: "yes" = 16(smashed) 7(hit) 6(control) ....Response: "no" = 34(smashed) 43(hit) 44(control)
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1.Participants in experiment 1?

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45 students of the university of washington

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1.how many film clips were they shown?

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1.what were they asked to do?

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1.how many conditions were there?

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