Interrogations and confessions part 2 Flashcards
(40 cards)
What is deception?
Vrij says that “a successful or unsuccessful deliberate attempt, without forewarning, to
create in another individual a belief which the communicator knows to be
untrue.”
What are the three main areas of research of deception?
Non verbal( e.gbody language)
Verbal
Phshyvsiological(lie detector)
What does it mean by a typical nonverbal response during
deception does not exist
there is nothing in your face that will do when you lie or truth telling
What are three processes by nonverbal behaviours that might increase/decrease during deception?
- Emotion
- Cognitive Load/Content Complexity
- Attempted Behavioural Control
What are three most common types of association with lying?
fear,
guilt, and ‘duping delight’
What happens to your body language when you are required to think
really hard about something?
their rates of body movement tends to decrease
How do people attempt behavioural control?
-Liars engage in “impression management” to avoid being caught
-also, might lead to overcontrol
How good are people at spotting the liar from the nonverbal cues?
They found that there are four behaviours that change the rate of occurrence,
-Your voice pitch increases
-Speech error increases
-illustrators error go down(less arm movement)
-hand/finger movement go down
What is percentage of verdict based on the nonverbal cues?
55% for truth or lies.
Why are we not really good at detecting lies using body language?
People have false beliefs.
What are the examples of false beliefs?
- Examined people’s beliefs regarding deceptive body language
- Most cited increases in gaze aversion, fidgeting, and latency periods(taking a long time to answer)
- None of these have been shown to increase in liars
What does people say about their behaviour when they are lying?
People are terrible judges of their own lying behaviour, Responses were consistent with stereotypes of liars, not actual
behaviour
What does it mean that people can be taught the wrong cues to deceit?
Kassin & Fong suggest that groups of participants who were trained on nonverbal cues to deceit performed worse than the control in detecting lies
What do we mean by Empirical research may send us mixed messages?
Emotion increases the blinking rate
Cognitive load decreases blinking rate
The researcher will ask will liars exhibit an increase or a decrease in blinking?
What constitutes the lies?
- What constitutes “more” or “less” of a behaviour?
- Obvious that the comparison should be a within subjects comparison(more or less for one person)
- this is widely impractical
What is research look like for verbal cues deception?
less extensive than for nonverbal cues
What is way of the use of Statement Validity Assessment
(SVA)
-Structured memory interview
-Interview coded( score)
-Evaluation of outcome
What is the overarching tool for verbal cues?
Statement Validity Assessment
(SVA)
What analyses were used for assessing the validity child sexual abuse statements?
CBCA (Criterion-Based Content Analysis)
What is Undeutsch Hypothesis?
statements derived from memory are
qualitatively and quantitatively different than those derived from
invention or fantasy
How many criteria in CBCA?
19
How good is CBCA?
76% are going to say it is truth,
68% you are going to say it is lies
Why do CBCA score result in failure?
CBCA scores may be variable due to factors other than deception:
the scores increase due to age, interviewer’s style, Verbal and Social Skills
What do we mean by Physiological Cues to Deception
A scientific measuring device that can display a direct and valid
representation of various types of bodily activity
