Loftus & Palmer

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Aim (EX1)
To investigate how information supplied after an event influences a witnesses memory of that event
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Participants (EX1)
45 students from Washington Uni
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Method (EX1)
Shown 7 film clips of traffic accidents. After each clip they were given a questionnaire with one critical question
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Critical Question (EX1)
'About how fast were the cars going when they ..... into each other'
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Critical Words (EX1)
HIT. SMASHED. COLLIDED. BUMPED. CONTACTED (these were the 5 groups)
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Results (EX1)
Speed estimates. Smashed 40.8, Collide 39.3, Bump 38.1, Hit 34, Contact 31.8
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Conclusion (EX1)
1) demand characteristics, biased response 2) memory actually altered, critical question distorted memory of the accident
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Aim (EX2)
To test which explanation to experiment 1 was correct, If memory was affected or demand characteristics
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Participants (EX2)
150 new students to avoid bias or demand characteristics
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Method (EX2)
split into 3 groups. Watched a one minute film including a 4 second accident. G1- HIT, G2- SMASHED, G3- NOT ASKED. Asked a week later about broken glass
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Results (EX2)
Response to broken glass; YES- SMASHED 16 HIT 7 CONTROL 6 NO- SMASHED 34 HIT 43 CONTROL 44
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Conclusion (EX2)
Observing event and the information supplied after the event are used to reconstruct the event (memory)
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Other cards in this set

Card 2

Front

45 students from Washington Uni

Back

Participants (EX1)

Card 3

Front

Shown 7 film clips of traffic accidents. After each clip they were given a questionnaire with one critical question

Back

Preview of the back of card 3

Card 4

Front

'About how fast were the cars going when they ..... into each other'

Back

Preview of the back of card 4

Card 5

Front

HIT. SMASHED. COLLIDED. BUMPED. CONTACTED (these were the 5 groups)

Back

Preview of the back of card 5
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