Eye witness testimony (EWT) can be crucial in criminal trials. Who found that 74% of suspects in 300 cases were convicted through EWT only?
Answer
Marshall (1969)
Baddelev (1997)
Fillmore (1971)
Question 2
Question
Inaccurate EWT is the main factor leading to false convictions.
Answer
True
False
Question 3
Question
The 'innocence project' claims that eyewitness misidentification is the single greatest cause for wrongful convictions in the USA, playing a role in how many convictions that were later overturned through DNA testing>
Answer
100%
50%
75%
25%
Question 4
Question
Which of the below are explanations offered for the inaccuracy of EWT?
Answer
Police/investigators may alter the witness's perception of the event, therefore effect what they recall.
Police/investigators may force the witness to change what they recall.
The witness may not have actually witnessed the event and make up something.
Question 5
Question
Leading questions may affect a witness's ability to judge the speed of vehicles, because people are quite poor at judging numerical details. Which of the below can be used as an example of this?
Answer
Marshall (1969) found that air force personnel observed a car travelling at 12 mph, their estimates varied from 10-50 mph.
Fillmore (1971) suggests that using the words 'smashed' or 'hit' implies differing rates of movement. Such words lead the listener to assume different consequences for the impacts to which they are referring, with 'hit' being perceived as gentler than 'smashed'
Fillmore (1971) found that air force personnel observed a car travelling at 12 mph, their estimates varied from 10-50 mph.
Baddelev (1997) suggests that using the words 'smashed' or 'hit' implies differing rates of movement. Such words lead the listener to assume different consequences for the impacts to which they are referring, with 'hit' being perceived as gentler than 'smashed'
Question 6
Question
What were the aims of Loftus and Palmer's study?
Answer
Overall aim- to investigate the accuracy or inaccuracy of memory, in particular the effect of leading questions on the estimate of speed.
Experiment 1- to investigate whether participants were good at judging speed.
Experiment 1- to investigate how the phrasing of a question (namely a leading question) can influence the speed estimates of participants who have witnessed a traffic accident.
Experiment 2- to investigate whether leading questions simply bias a person's response or actually alter the memory that is stored.
Question 7
Question
The sample was of 36 American College students gained by an opportunity sample.
Answer
True
False
Question 8
Question
They all watched ..... different film clips which ranged from ....... seconds each.
Answer
7, 5-30
8, 10-25
9, 5-25
Question 9
Question
After watching the clip participants received what?