Accuracy Of EWT

Question 0

According to Deffenbacher et al. (2004) what impact does high levels of stress have on EWT?

Answer 0

Negative impact on the accuracy of EWT

Question 1

Which two factors influence the accuracy of EWT?

Answer 1

Anxiety and age

Question 2

According to Christianson & Hubinette (1993) what impact does high levels of stress have on EWT?

Answer 2

Positive impact on the accuracy of EWT

Question 3

What does the Yerkes-Dodson Law state about anxiety and the accuracy of EWT?

Answer 3

Accuracy improves with increased anxiety to an optimal point and then declines with further increases

Question 4

What is the weapon-focus effect?

Answer 4

When the witness is focused on central details, i.e. a weapon in a crime

Question 5

What did Johnson & Scott (1976) conclude from their experiment on weapon-focus effect?

Answer 5

The weapon distracted Ps attention from the person holding it.

Question 6

Would you expect poorer recall for a man holding a pen or a knife?

Answer 6

Poorer recall for a man holding a knife (attention focused on weapon not the person)

Question 7

Where do people look when a person is holding a weapon?

Answer 7

Eye movements are physically drawn away from the face and to the weapon (Loftus et al. 1987)