improving the accuracy of an eye witness testimony: cognitive interview

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  • Created by: hope2003
  • Created on: 02-03-20 19:53
cognitive interview theorists
Fisher and Geiselman (1992) - interview has 4 main techniques to get a psychological insight on how memory works
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1) report everything
include every detail even if you feel it is irrelevant or you aren't confidant about it: trivial details may trigger other information or be important
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2) reinstate the context
return to original crime scene in mind and imagine the environment - context dependant forgetting
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3) reverse the order
recalled in a different chronological order to prevent reporting expectations and dishonesty
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4) change perspective
recall from a different point of view: disrupts effect of expectations and schema on recall
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the enhanced cognitive interview
Fisher et al (1987) - additional elements of the cognitive interview to focus on social dynamics. Reduce anxiety, minimise distractions, ask open ended questions and get eye witness to speak slowly
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main evaluation points of cognitive interview
some elements are more valuable than others, cognitive interview is time consuming, support for the effectiveness of ECI, CI creates increase in innacurate information, variations of CI are used
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evaluation of cognitive interview - some elements may be more valuable than others
Milne and Bull (2002) each individual element produces more information that a standard police interview. however, report everything and reinstate produce better recall.
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evaluation of cognitive interview - CI is time consuming
police may be reluctant as takes long time and requires special training
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evaluation of cognitive interview - support for effectiveness of ECI
kohnken (1999) did meta analysis of 50 studies and ECI provided more information that the police interview
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evaluation of cognitive interview - CI creates an increase in inaccurate info
khonken - 81% increased correct answers but 61% increase incorrect answers, decreasing validity
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evaluation of cognitive interview - variations of CI are used
studies of effectiveness of CI use different CI techniques - the same as in real life
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Card 2

Front

include every detail even if you feel it is irrelevant or you aren't confidant about it: trivial details may trigger other information or be important

Back

1) report everything

Card 3

Front

return to original crime scene in mind and imagine the environment - context dependant forgetting

Back

Preview of the back of card 3

Card 4

Front

recalled in a different chronological order to prevent reporting expectations and dishonesty

Back

Preview of the back of card 4

Card 5

Front

recall from a different point of view: disrupts effect of expectations and schema on recall

Back

Preview of the back of card 5
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