Fisher - 1985

Question 1

Findings

Answer 1

• Cognitive and hypothesis techniques produced significantly more correct items than the standard interview. held true with analysis of critical facts rather than subject’s responses.
• No significant difference between cognitive and hypothesis techniques.
• Cognitive interview is longer
• Cognitive and hypothesis techniques asked less questions than the standard, but got more correct answers, therefore more efficient way of obtaining accurate data.
• Males significantly more incorrect than females.
• Useful as suggested these techniques may be specifically helpful when dealing with incident where there is a lot happening at once.

Question 2

Aim

Answer 2

Aim: Eyewitness memory enhancement in the police interview. Cognitive retrieval of memories compared to hypnosis.

Question 3

Background

Answer 3

Eyewitness testimonies are incomplete, partially reconstructed and affected by questioning.
Hypnosis - some states do not allowed evidence obtained under hypnosis in court. Evidence may be mixed but useful for traumatised witnesses.
CI - 4 elements

Question 4

Procedure

Answer 4

INTERVIEWERS
17 police officers/CI investigators = allocated to one of three interview techniques.
SUBJECTS
89 undergraduates = saw one of 4 LAPD realistic films including at least one fatal shooting. Randomly assigned to one of 3 interviewing techniques after 48 hours of viewing and individually interviewed. Interviews recorded and transcribed.