Accuracy of EWT - Anxeity Flashcards

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1
Q

Define anxeity

A

“An unpleasant emotional state which is often accompanied by physiological arousal.”

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2
Q

What are the 2 views on the effect of anxeity on EWT?

+ the researchers who proposed these views.

A
  • Anxeity has a positve effect on the accuracy of Eyewitness testimony (Christianson and Hubinette)
  • Anxeity has a negative effect on the accuracy of Eyewitness testimony (Johnson and Scott)
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3
Q

Outline the experiment and findings conducted by Christianson and Hubinette

(Hint) BANK

A
  • Witnesses/victims of robbery questioned on details of event
  • Most anxious witnesses (victims) were able to remeber more details than less anxious.
  • Suggests Greater accuracy of EWT when anxious.
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4
Q

Outline the experiment and Finding conducted by Johnson and Scott

Focus

A
  • Experiment investigating Weapon focus effect.
  • 2 groups (independant group design) witness either man running through room with bloody knife/greasy pen.
  • Mean accuracy for identifying man in Pen condition was 49% compared to knife- 33%
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5
Q

Who resolved the contradicting views on the effect of Anxeity on EWT?

What was this effect know as?

(Hint) Y…..D…

A
  • Deffenbacher - He suggested that extreme highs/low of anxiety have a negative effect on Eyewitness accuracy, however moderate levels improve accuracy - The Yerkes Dodson effect
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6
Q

Evaluate anxiety effects on eyewitness testimony.

1 pro 2 cons

A
  • Findings of Lab studies (e.g. Christianson and Hubinette) agree with findings of real studies - can be generalised.
  • Individual differences/other factors at play
    • Emotional sensitivity + Violence of crime.
  • Pickel - hairdressing scenario suggets suprise rather than anxeity
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