Mann Flashcards

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1
Q

What subsection is Mann apart of?

A

Interviewing suspects

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2
Q

What are the other studies in this subsection?

A

Mann

Inbau gudjohnsson

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3
Q

What was the aim of of Mann research?

A

To test police officers ability to distinguish truths and lies during police interviews with suspects

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4
Q

What was the method?

A

Field

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5
Q

How many participants were there?

A

99 police officers 24 females 75 males

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6
Q

What jobs did participants have?

A

Detectives traffic officers

Trainers

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7
Q

What was the main task given to p/s?

A

Asked to judge the truthfulness of people in real life police interviews

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8
Q

How many suspects were there?

A

14

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9
Q

What controls where used?

A

Showing head, torso so expressions and movements were visible

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10
Q

How many clips were there and how did they vary?

A

6-145 seconds

54

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11
Q

What did officers have to complete?

A

A questionnaire on experience of telling lies

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12
Q

What did participants have to do after they watch the clips?

A

State whether they thought if it was the truth or a lie
How confident they were in their decision
Then to list cues they had seen to detect lies

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13
Q

What was the mean lie accuracy?

A

66.2%

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14
Q

What was the mean truth accuracy?

A

63.6% (not significant but greater than chance)

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15
Q

What was another finding?

A

Experience in interviewing was correlated with truth accuracy and lie accuracy

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16
Q

What was the most frequently mentioned cues?

A

Gaze
Movements vagueness
Contradictions fidgeting

17
Q

What was the first conclusion ?

A

The level of accuracy are higher than in other studies

Highest for ordinary police officers

18
Q

What was the second conclusion?

A

The more experienced an officers, the better they are at detecting lies
Good lie detectors rely on story cues rather than stereotypical views of certain cues

19
Q

What is a final cue?

A

Police officers can detect lies above level of.chance but often pay attention to cues that are not diagnosis cues to deceit possibly due to appearing in police manuals