What kind of experiment was Yuille and Cutshall?
Yuille and Cutshall was the first investigation in witness testimony to use real witnesses of a real incident. Eyewitnesses aren’t as inaccurate as laboratory studies suggest. The long-term accuracy was possibly due to the incident being memorable and unusual.
How much time had elapsed between Yuille and Cutshall’s participants witnessing the crime and being interviewed as part of the research study?
21 witnesses were originally interviewed by investigating police and 13 witnesses, aged between 15 and 32, agreed to take part in Yuille and Cutshall’s follow-up research interview, 4-5 months later.
How do you test the accuracy of eyewitness testimony?
Variations
- Test the effect of misleading questions on later recall. Separate your “witnesses” into two groups.
- Test the effect of wording on immediate recall. Separate your “witnesses” into two groups.
- Test the effect of distractions during screening on recall. Separate your “witnesses” into two groups.
What are the two main categories of variables that affect eyewitness identification?
Leading social science researchers identify two main categories of variables affecting eyewitness identification: estimator variables and system variables. Estimator variables are those that cannot be controlled by the criminal justice system.
Is Yuille and Cutshall a natural experiment?
Recall was found to be accurate and two misleading questions had no effect on recall accuracy, even after a long time. Yuille and Cutshall’s experiment had ecological validity as it’s a field study (in a real environment and a real situation), meaning the behaviour was more likely to be spontaneous and natural.
How does post event discussion affect eyewitness testimony?
POST-EVENT DISCUSSION: Post-event discussion is when eyewitnesses discuss what they saw in an event with each other. This can influence the accuracy of an eyewitness’ recall because the other person’s view could feed them incorrect information.
How does leading questions affect eyewitness testimony?
Questioning Techniques. Intentionally or accidentally, leading questions can impact on the testimonies provided by eyewitnesses in trials, influence referendum outcomes and affect the accuracy of survey results. Beyond the phrasing of questions, a number of other factors can also affect the answers given to questions.
What are the problems with eyewitness testimony?
Eyewitness testimony can be unreliable due to conditions at the scene of a crime, memory “contamination” and misrepresentation during trial. Eyewitness testimony can be an incredibly compelling form of evidence during criminal justice proceedings in Austin.
What are 2 things that can be done to help improve the validity of eyewitness reporting?
New law enforcement training protocols, standardized procedures for administering lineups, improvements in the handling of eyewitness identification in court, and better data collection and research on eyewitness identification can improve the accuracy of eyewitness identifications.
How do you fix eyewitness misidentification?
Ensure that police put in writing why a suspect is believed to be guilty of a specific crime before placing him or her in a lineup. Use a lineup with several people instead of what is known as a showup only featuring a single suspect. Avoid repetition of a lineup with the same suspect and same eyewitness.
