Eyewitness testimony Flashcards
what can lead to a conviction?
1) Conformity: of juries
2) confirmation bias: seek out info to confirm our beliefs
3) Ambiguity: make ambiguous info fit schemas
4) stress and anxiety: more stress = less accuracy
a) weapon focus
Weapon focus
why? - attention is on the gun not elsewhere
OR - the unexpectedness draws our attention is
Leading questions
memory = fragile and easily influenced
- loftus & Palmer (1974)
- Retroactive & proactive interference
How are memories distorted?
1) missattribution of source
2) social pressure: please questioner
3) overwritting effect: misleading q’s overwrite mems
Cognitive interviewing techniques
1) recall backwards
2) recall trivial information
3) others’ perspectives
4) rebuild environment
What overwriting factors are there that distort memory?
Vacant slot: misleading info accepted when missing from original trace
Coexistence: original and post event information coexist. Post event information is selected because:
(1) conformity, or (2) misattributed
Blend: Eyewitnesses ‘accept’ misleading information after event. Information becomes part of the original event memory
Response bias: issues relating to way in which study is conducted