Effects of misleading information on EWT (Loftus and Palmer)
- Created by: Reece
- Created on: 04-01-13 20:32
View mindmap
- Effects of misleading information on EWT
- Loftus & Palmer
- Procedures
- 45 American students
- Shown 7 films of car collisions
- Given a questionnaire after each film with 1 critical question. Divided into five groups.
- Verb changed from either Smashed, collided, bumped, contacted or hit.
- Findings
- Estimated speed was affected by the verb used
- Group given 'smashed' estimated 9MPH higher than group with the verb 'contacted'
- Conclusions
- The questions can be termed 'leading' as they affected the witnesses memory of the event.
- Language can have a distorting affect on EWT
- Leading to inaccurate accounts
- Procedures
- Evaluation Points
- Influential
- Shows that memory can be fundamentally altered by post event information
- Has implications for the way witnesses are questioned in court.
- Shows that memory can be fundamentally altered by post event information
- Reliable
- Research groups have conducted many studies and found similar results.
- High control of variables due to it being a laboratory experiment make the study replicable and more reliable
- Research groups have conducted many studies and found similar results.
- Contradictory real life research
- Yuille & Cutshall
- Studied witness recall after a shooting outside a gun shop in Canada
- Concluded that important info in real life crime is not easily distorted.
- Additionally there's a weapon effect where witnesses focus on the weapon
- This could explain why there's poor recall on violent crimes involving a weapon
- Additionally there's a weapon effect where witnesses focus on the weapon
- Concluded that important info in real life crime is not easily distorted.
- Studied witness recall after a shooting outside a gun shop in Canada
- Yuille & Cutshall
- Lacks ecological validity
- Artificial setting (lab) doesn't reflect real life.
- Can't replicate real life EWT conditions such as fear and shock for practical & ethical reasons
- Events may be recalled significantly differently to real life
- Foster found that participants who believed they were watching a real robbery important to a real trial were more accurate than those who did not.
- Events may be recalled significantly differently to real life
- Can't replicate real life EWT conditions such as fear and shock for practical & ethical reasons
- Artificial setting (lab) doesn't reflect real life.
- Influential
- Loftus & Palmer
- Untitled
Comments
No comments have yet been made