Factors that affect EWT

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What did Gabbert do?
Made pairs of participants watch a video of crime and then discuss what they saw; 71% acquired info from their partner; a control group with no discussion had 0% sharing
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Who claimed that there is greater pressure in real life?
Foster
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How many participants took part in Loftus + Palmer's study?
45 (9 per control)
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Who supported Loftus and Palmer's study with a survey, after creating false memories of participants getting hangovers post-drinking at 16?
Clafasefi
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Who said that Loftus and Palmer's participants had demand characteristics to be helpful?
McCloskey
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What did Christianson say about Loftus and Palmer's study?
There is no emotional arousal
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What is Loftus and Palmer's study testing?
The effect of leading questions
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What are the two reasons as to why leading questions affect eye witness testimonies?
response-bias explanation and substitution explanation
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What is the response-bias explanation?
The leading question changes the way that you answer the question (e.g L+P's participants responded with different speeds)
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What is the substitution explanation?
The leading question changes the memory of the event (e.g L+P's participants claimed to remember broken glass)
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What did Johnson and Scott prove?
Anxiety is bad in some EWT situations
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What did Johnson and Scott call their findings?
The weapon Focus Effect
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What is the ratio of non-anxiety to anxiety percentages of line-up recall?
49% : 33%
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Why did those who saw the knife recall less accurately?
Tunnel theory of memory - focus on the weapon and nothing else
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Who did a similar experiment in horror maze and found the ratio was 75% : 17%
Valentine and Mescout
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Who contradicted Johnson + Scott's findings and how?
Pickel; found it was surprise, not anxiety; raw chicken, wallet, scissors, handgun
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Who interviewed 110 bank robbery victims and found that more anxiety meant better recall?
Christianson + Hubinette
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Who interviewed bank robbery victims 4-5 months after the occurrence and found recall was still good?
Yuille and Cutshall
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What did Yuille and Cutshall find?
There was little change in accuracy from their EWT after 5 months; those who reported the highest levels of anxiety were most accurate (88% vs 75%)
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What is the explanation for why anxiety affects EWT?
Yerks-Dodson Law - inverted U
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Why is recall so bad with little anxiety?
No emotional arousal
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Why is recall so bad with lots of anxiety?
Production of cortisol hormone suppresses memories
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Who said that anxiety had no effect over children's EWT?
Deffenbacher
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Why is medium anxiety good for EWT recall?
It provokes the fight or flight response, increasing alertness and awareness of cues in the situation
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What are the general evaluation points for eye witness testimony studies?
Ethical issues of psychological harm and deception, field studies often lack control over extraneous variables and post-event discussion; demand characteristics in lab studies
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Other cards in this set

Card 2

Front

Who claimed that there is greater pressure in real life?

Back

Foster

Card 3

Front

How many participants took part in Loftus + Palmer's study?

Back

Preview of the front of card 3

Card 4

Front

Who supported Loftus and Palmer's study with a survey, after creating false memories of participants getting hangovers post-drinking at 16?

Back

Preview of the front of card 4

Card 5

Front

Who said that Loftus and Palmer's participants had demand characteristics to be helpful?

Back

Preview of the front of card 5
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