Cognitive interview evaluation

Strength: supported by research evidence - Kohnken 
Kohnken carried out a meta-analysis of 53 different lab studies and reported that CI increased the effectiveness of EWT. This shows that CI consistently increases the effectiveness of EWT, meaning that a CI is better than a standard interview when trying to obtain information from eyewitnesses

Strength: supported by research evidence - Fisher et al
Fisher et al's study showed that detectives trained in CI obtained 63% more information than those not trained in CI. As more information was gained from the CIs than standard interviews, this siggests CIs are more effective when interviewing eyewitnesses

Strength: practical application
If the CI if effective, it can improve people's EWTs and ensure that crimes are prosecuted correctly. This means that CI has practical…