G543 - Interviewing Witnesses - Fisher And Geiselmann Flashcards Preview

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Flashcards in G543 - Interviewing Witnesses - Fisher And Geiselmann Deck (15)
1

What type of experiment was used? With what?

Field experiment with actual interviews of real witnesses by police detectives from the Sade county police dept in Miami

2

How many detectives were studied? From where? Matched on what?

16 detectives from the dade county robbery division. All were experienced with a minimum of 5 years with the division

3

What did researchers do first?

Recorded the detectives carrying out their standard interviews for 4 months (88 interviews).

4

What did researchers do after recording the detectives for the first time?

They split the detectives into two groups

5

What were the two experimental groups?

One group was trained in cognitive interview (CI) techniques and the other group carried on as normal

6

How many sessions did the CI training consist of?

4 60 minute sessions

7

How many detectives completed the CI training?

7

8

What happened over the 7 months after the two groups were split?

More interviews were recorded for both groups

9

Who were recordings analysed by?

A team at the university of California who were blind to the conditions

10

What % more information did the CI trained detectives help witnesses recall after training?

47%

11

How much more information than untrained detectives did the CI trained detectives help witnesses recall?

63%

12

How were interviews tested for accuracy?

By checking them against other witnesses

13

How many cases were there with corroborating evidence?

24

14

What % of the recalled information was corroborated?

94%

15

What did they aim to test?

To test the cognitive interview in the field

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