Evaluating Improving The Accuracy Of Eyewitness Testimony: The Cognitive Interview

Question 1

Research into the effectiveness of the cognitive interview:

Köhnken et al. (1999)

Answer 1

A meta analysis showed an increase of 34% in the correct information generated by the CI compared with the ST interview.

Question 2

Quality vs Quantity:

Köhnken et al (1999)

Answer 2

found an 81% increase of correct information but also a 61% increase in incorrect information showing that the information produced by CIs aren’t always accurate/relevant

Question 3

Problems with the CI in practice:

Kebbel and Wagstaff (1996)

Answer 3

CIs are quite time consuming and require training which many police offers cannot provide