Accuracy of eyewitness testimony: Misleading Information

Key terms

Eyewitness testimony- the evidence provided in court by a person who witnessed a crime, with a view identifying the perpetrator of the crime

Leading question- a question that, either by its form or content, suggests to the witness what answer is desired answer.

Misleading information- supplying information that may lead a witness' memory for a crime to be altered.

Post-event discussion- a conversation between co-witnesses or an interviewer and an eyewitness after a crime has taken place which may contaminate a witness' memory for a event

Leading questions

Experiment 1: procedure

45 students were shown 7 films of different traffic accidents.

The students were given questionnaires and were given different verbs to describe the event

Findings

🔥 smashed: 40.8, collided: 39.3, bumped: 38.1, hit- 34.0, contacted: 31.8

Experiment 2: procedure

Ppts response or may actually cause information to be altered before it is stored

New sets of ppts were divided into 3 other groups and a different car accident was shown and asked about speed but now was asked about whether any glass was seen

🔥 yes - smashed: 16, no - smashed: 34, yes - hit: 7, no - hit - 43, yes - control: 6, no - control: 44

Post-event discussion

Conformity effect

Ppts were told to discuss about videos that were shown and 71% mistakenly discussed the event when asked about it

Repeat interviewing

Each type an eyewitness is interviewed there is a possibility that comments from the interviewer will become incorporated into their recollection of events. It is also the cause that an interviewer may use leading questions and thus alter the individual's memory fro events.

This is especially the case when children are being interviewed for a crime

Conclusion

Supporting evidence

EWT in real-life

Real-world applications

Individual differences

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