Improving the accuracy of eyewitness testimony: Cognitive interview

Question 1

What is the support for the effectiveness of CI

Answer 1

Meta-analysis (Kohnken et al). of 55 studies comparing CI+ ECI with SI
CI= 41% more accurate info

Question 2

How can the support for the effectiveness of CI be countered

Answer 2

Kohnken also found increase in the amount of inaccurate info (particularly CI)
-Ci may sacrifice quality for quantity

Question 3

What is a limitation of Ci in terms of its usefulness

Answer 3

-Not all elements useful
-Milne and Bull found all 4 techniques= better recall than SI
-But report everything +reinstate context = better recall than any other element

Question 4

What is a limitation of the Ci in terms of time taken

Answer 4

Time consuming and requires more training than SI
-Need to build rapport
-may not be a realistic method for police to use due to lack of resources