What did Gabbert et al. (2003) investigate?

• The effect of post-event discussion on the accuracy of eyewitness testimony

• The effect of age on the accuracy of eyewitness testimony

• The effect of leading questions on the accuracy of eyewitness testimony

• The effect of anxiety on the accuracy of eyewitness testimony

How many participants were in Gabbert et al.'s study?

• 80

• 100

• 60

• 120

What percentage of the co-witness group recalled information they had not seen?

• 80%

• 60%

• 71%

• 50%

What is one explanation for why post-event discussion affects eyewitness testimony?

• The conformity effect

• The memory effect

• The recall effect

• The distortion effect

What is a strength of Gabbert’s study?

• It used a diverse range of video clips

• It uses a repeated measures design

• It was conducted in a natural setting

• It used a highly controlled laboratory setting

What is a limitation of Gabbert’s study?

• It only used one type of actress in the video clips

• It did not include a control group

• It was conducted in an uncontrolled environment

• It only included male participants

What practical application does research into post-event discussion have?

• Improving courtroom procedures

• Advising police officers to prevent witness discussion

• Developing new interrogation methods

• Enhancing memory recall techniques

What did 60% of the co-witness group incorrectly believe?

• The girl was guilty

• The girl was a victim

• The girl was innocent

• The girl was a witness

How does post-event discussion affect the accuracy of EWT?

• People conform because they think others may know more than them.

• People obeyed the interviewers / researchers for fear of looking bad.

• The interviewers asked leading closed questions which changed their memory of the event.

• People lie to the police as they are scared of the consequences, so say the same thing as others said.