Fisher - cognitive interview

Question 0

In the first phase of the study, how many interviews were collected?

Answer 0

88 interviews over 4 months

Question 1

How many participants in Fisher’s study?

Answer 1

16 detectives

Question 2

How many groups in Fishers study?

Answer 2

2 groups, one was trained in cognitive interview techniques.

Question 3

How long did it take to train the detectives in cognitive interview techniques?

Answer 3

It was over four 60-minute sessions

Question 4

How many detectives completed the programme?

Answer 4

7 detectives

Question 5

What are Fisher’s four basic principles?

Answer 5

1. Event-interview similarity –> similar environment to the original event
2. Focused retrieval –> focused concentration
3. Extensive retrieval –> encouraged to remember the most they can
4. Witness-compatible questioning –> interviewers should be flexible and alter their approach to meet the needs of each witness

Question 6

How much more information did the trained detectives get from the witnesses compared to before their training?

Answer 6

47%

Question 7

How much more information did the trained detectives get from the witnesses compared to the untrained detectives?

Answer 7

63%

Question 8

Who analysed the post-training interviews in Fisher’s study?

Answer 8

A team from the University of California who were blind to the conditions (whether or not they were trained or not)