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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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In Manns study into polices ability to detect lies what is the aim? |
To test police officers ability to distinguish truth and lies during interviews with suspect |
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What was the method of Manns study? |
A field experiment testing Kent police officers |
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Describe the sample of Manns study. |
99 Kent police officers (24 female, 75 male) mean age- 34 Mostly detectives but some in training, traffic officers and uniformed response officers |
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What were they given prior to the experiment? Mann |
Questionnaire about previous experience of detecting lies. |
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Describe the procedure of Manns study |
Officers watched 54 video clips of 14 suspects answering questions about crimes ranging from 6 seconds to 145 seconds. All clips showed upper body and head |
Video clips |
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What did the officers I Manns study note down after each clip? |
-if they thought the suspect was lying or not -how confident they were about their judgement -what cues they used to reach the dicision |
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What were the findings for Manns study? |
Officers spotted lies on 66% of the time and spotted truths on 64%. Positive correlation between years of experience and their score of detecting Lies |
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In Manns study what's the problem with not having a control group? |
You can't establish if they were better then the public at detecting lies and that's not possible on issues of confidentiality. |
In the conclusion |
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Where has inbaus study been used in real life situations? |
In police and military interrogation |
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When did imbau suggest to use this technique? |
After someone has been identified as possibly guilty by ordinary interviewing |
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Name 5 steps in the Reid technique |
-Direct positive confrontation -Handling denials -Gaining the suspects attention -Presenting the alternative -Oral confession |
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Describe 3 of imbaus techniques. |
Handling denials- interrogator must interrupt the suspects denials.... Gaining suspects attention- as objections fail, suspect withdraws so interrogator must gain attention again. Oral confession- this self-incrimination is turned into a full confession with only interrogator present |
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What was the aim of Gudjonsson and MacKeiths study? |
To document a case of a false confession of a youth who was at the time distressed and susceptible to interrogative pressure |
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Describe "FC" for Mackieth |
Average intelligence, scored 10 for suggestibility, and IQ was 94. |
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When FC was taken in for questioning what happened? |
Not allowed a solicitor and interviewed for 14 hours straight by police |
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What was the conclusion to MacKeiths study? |
It was a clear case of "coerced complaint false confession". He gave in to pressure to escape from the interview situation. |
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