Anxiety Affecting EWT

Question 1

Who found that anxiety has a negative effect on EWT?

Answer 1

Johnson and Scott in 1976

Question 2

Aim of the Johnson and Scott study?

Answer 2

To find out whether anxiety has an effect on EWT

Question 3

Procedure of Johnson and Scott study?

Answer 3

Low anxiety: participants hear an argument going on in another room then a man walks out carrying a pen with pen grease on his hands
High anxiety: participants hear the same argument but also hear glass smashing then a man walks out of the room carrying a knife that was covered in blood.
Participants were later then asked to identify the man from a set of 50 men

Question 4

Results of the Johnson and Scott study?

Answer 4

% of correct recall for low anxiety was 49% whilst % of correct recall for high anxiety was 33%

Question 5

Tunnel Theory

Answer 5

A witnesses attention narrows to focus on the weapon because it’s a source of anxiety

Question 6

Who else researched anxiety on EWT

Answer 6

Yuille and Cutshall 1986

Question 7

Procedure of Yuille and Cutshalls study?

Answer 7

A real life shooting happened. 13/21 witnesses agreed to participate
Participants were interviewed 4-5 months after the shooting and this was compared with the original interviews

Question 8

Results of Yuille and Cutshall Study?

Answer 8

Participants who had higher stress recalled 88% accurately
Whilst participants who had lower stress only recalled 75% accurately

Very accurately only minor changes