factors affecting accuracy of ewt - misleading information ao1 Flashcards

(25 cards)

1
Q

what can affect the accuracy of ewt

A

anxiety
misleading information

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2
Q

accuracy of ewt can be imporved by

A

cognitive interview

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3
Q

ewt definitiona

A

account give by someone of a crime usually

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4
Q

misleading info def

A

incorrect info given to ewt usually after the event which distorts what they remember

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5
Q

2 types of misleading info

A

leading questions
post event discussion

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6
Q

what is a leading question

A

questions phrased in a way that they lead us or imply us to a specific answer

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7
Q

who and when did research into leading questions

A

loftus and palmer 1963

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8
Q

loftus and palmer 1963 - what did they make ppts doo

A

45 ppts to watch film clips of car accidnet
then asked ppts a critical question how fast were the cars going when they ______ eachother?

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9
Q

what did loftus and palmer ask ppts

A

then asked ppts a critical question how fast were the cars going when they ______ eachother

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10
Q

5 verbs used in critical questions

A

bumped
knocked
hit
contacted
smashed

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11
Q

mean estimate speed for groups who heard word contacted was

A

38.8 mph

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12
Q

mean estimate speed for groups who heard word smashed was

A

40.5mph

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13
Q

what do findings of loftus and palmer suggest

A

leading question biased the ew recall of event

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14
Q

2 reasons why leading questions affect ewt

A

response bias
substitution bias

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15
Q

what is response bias

A

wording of question doesnt affect ppts memory just affects what we say when we answer

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16
Q

what is substitution bias

A

wording of question changes ppts memory of event

17
Q

substitution bias lead to..

A

loftus palmer second expiremenr 1974

18
Q

what happened in loftus and palmers second expiriment

A

ppl who heard the critical verb smashed more likely to report broken glass although there wasnt any then ppts who heard the word hit

19
Q

what is post event discusiion

A

more than 1 witness
they discuess what theyve seen with eachother or with other ppl
could influence accuacy of recall of event

20
Q

who studied post event discussion

A

gabbert et al 2003

21
Q

procedure of gabbert et al 2003

A

ppts paired up
each ppt watched video of same crime at different angles
and so saw differernt things eg one of pptsv able to see title of a book carried by a woman
then ppts pairednback and allowed to discuss what they saw
there was also a control grouo where there was no post event discussion

22
Q

findings from gabbert et al 2003

A

71 % of ppts mistakenly recalled info they couldnt of seen but picked up on during post event discussion
vs in the control grouo where 0% of ppts picked up on things they couldnt have seen

23
Q

2 explanations fot effects of ped

A

memory contamination
memory conformity

24
Q

what is memory contamination

A

during ped memory gets distorted through combining memory of others with your own

25
what is memory conformity
witnesses go along with eachother to win social approval or because they think others are right