the cognitive interview - evaluation

Question 1

It produces an increase in inaccurate information

Answer 1

Kohnken et al (1999) found an 81% increase in incorrect information but also a 61% increase in inaccurate information when the enhanced CI was compared to a standard interview

Question 2

Research may be unreliable because of variations of the CI

Answer 2

• Studies use slightly different techniques - different researchers may use variations on the CI
• This means it is difficult to draw conclusions about the CI
• ● The CI requires special training → time-consuming and expensive

Question 3

The CI is time-consuming, requiring more time than officers have available

Answer 3

this may limit its use even if it is found to be effective

Question 4

Some elements of the full CI are useful

milne and bull 2002

Answer 4

• Milne and Bull (2002) found that each individual element of the CI was equally valuable
• However, they also found that a combination of ‘report
  everything’ and ‘context reinstatement’ produced better recall than any other techniques individually

Question 5

There is evidence support for the effectiveness of the enhanced CI

Answer 5

A meta-analysis by Kohnken et al (1999) combined data from 50 studies
- The ECI provided consistently more information that the standard interview used by police

Question 6

There is evidence support for the effectiveness of the CI

fisher et al

Answer 6

• Fisher et al (1989)
• 16 detectives were split into two groups → one group received CI training and the other group received no additional training (control group)
• After training, the CI group gained 63% more information in interviews than the untrained group