Loftus & Palmer Revision Cards

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  • Created by: hxwarth
  • Created on: 30-04-14 16:14
Background Summary
Affected by information after the event e.g. motivation, leading questions. Juries are convinced by Eye Witness Testimony even if it's discredited.
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Aim
Investigate how information supplied after an event influences a witness' memory for that event. They looked especially at phrasing of questions.
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Research Method
Two laboratory experiments with independent measures design.
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Participants
195 students from Washington Uni. 45 in experiment 1, 150 in experiment 2.
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Procedure 1
-45 students show 7 clips of car accidents (5-30secs) - Split into 5 groups of 9. -Asked to write an account of accidents & answer questions.
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Procedure 1 continued
-Critical question was "How fast were the cars going when they ***** each other" - Verbs were "smashed, collided, bumped, hit, contacted" - Researchers analysed responses.
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IV + DV
IV= verb in critical question. DV= speed estimate given
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Results
Mean estimates:- Smashed=40.8 ; Collided= 39.3 ; Bumped=38.1 ; Hit=34.0 ; Contacted=31.8
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Conclusion
Speed estimates occurred because the critical word biased a person's response. It also alters a persons memory.
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Other cards in this set

Card 2

Front

Investigate how information supplied after an event influences a witness' memory for that event. They looked especially at phrasing of questions.

Back

Aim

Card 3

Front

Two laboratory experiments with independent measures design.

Back

Preview of the back of card 3

Card 4

Front

195 students from Washington Uni. 45 in experiment 1, 150 in experiment 2.

Back

Preview of the back of card 4

Card 5

Front

-45 students show 7 clips of car accidents (5-30secs) - Split into 5 groups of 9. -Asked to write an account of accidents & answer questions.

Back

Preview of the back of card 5
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