LIE DETECTION ACCURACY

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LIE DETECTION ACCURACY
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• WITHOUT EQUIPMENT AND STRANGERS AS TARGETS,
  50-60 IS THE USUAL LEVEL OF ACCURACY
• BUT WE MAY KNOW MORE THAN ACCURACY RATES SUGGEST
• THOSE WHO ARE EXTREMELY EFFECTIVE DETECTORS DO
  NOT HAVE AS MANY FRIENDS OR AS SATISFYING
  RELATIONSHIPS AS THOSE WHO ARE ONLY MODERATELY
  ACCURATE.

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• POPULARITY RATINGS BY TEACHERS OF THEIR HIGH
  SCHOOL STUDENTS INDICATED THAT THE STUDENTS WHO
  WERE HIGH IN DECEPTION DETECTION WERE ALSO LESS
  POPULAR THAN OTHER STUDENTS.

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DETECTION VARIABLES

• DOES FOREWARNING INCREASE ACCURACY?
• DOES EXPERIENCE WITH POTENTIAL LIARS INCREASE
  ACCURACY?
• DOES KNOWLEDGE OF THE LIAR INCREASE ACCURACY

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• DOES CULTURAL SIMILARITY OF LIAR AND DETECTOR
  INCREASE ACCURACY?
• DOES PROBING INCREASE ACCURACY?
• DO PERSONALITY CHARACTERISTICS OF LIAR AND
  DETECTOR AFFECT ACCURACY?

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DETECTION STRATEGIES FOR PROBING INTERROGATION

• INTIMIDATION
• SITUATIONAL FUTILITY
• DISCOMFORT AND RELIEF
• BLUFF
• GENTLE PRODS
• MINIMIZATION
• CONTRADICTION

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• ALTERED INFORMATION
• CHINK IN THE DEFENSE
• POINT OUT DECEPTION CUES
• CONCERN
• KEEPING THE STATUS QUO

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PARENT-ADOLESCENT CHILD STRATEGIES FOR DETECTING
DECEPTION

• USED INTIMIDATION, CONTRADICTION, GENTLE PRODS
• ALSO USED SELF-DISCLOSURE
• PARENTS STUCK WITH STRATEGY EVEN IF IT DIDNT
  WORK
• DIFFERENT VERSION OF THE TRUTH BIAS

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• ADOLESCENTS COULD IDENTIFY ABOUT 50 OF THEIR
  PARENTS DETECTION STRATEGIES
• THE DISCLOSURE TACTIC WAS NOT OFTEN IDENTIFIED
• PARENTS ASSOCIATED THE FOLLOWING BEHAVIORS WITH
  DECEIT

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• PROVIDING TOO MANY DETAILS OR NOT PROVIDING
  ENOUGH
• BEING EVASIVE
• CHANGING THE TOPIC OF CONVERSATION TOO QUICKLY
• CONTRADICTORY OR INCONSISTENT RESPONSES
• SHORT RESPONSES
• UNBELIEVABLE RESPONSES
• LACK OF EYE CONTACT

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• PLAYING WITH CLOTHING
• FIDGETING
• HEAD TURNED DOWNWARD
• BODY ORIENTATION AWAY
• SMILING
• DECREASED VOICE VOLUME
• EXCESSIVE USE OF GESTURES
• IDIOSYNCRATIC CUES

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INTERPERSONAL PERCEPTION TEST

• 5
• WHICH PERSON IS TELLING A LIE?
• A. THE MAN IS LYING, THE WOMAN IS TELLING THE
  TRUTH
• B. THE MAN IS TELLING THE TRUTH, THE WOMAN IS
  LYING
• C. BOTH THE MAN AND THE WOMAN ARE LYING

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• 9
• YOU WILL SEE THE SAME WOMAN IN TWO SCENES. WHICH
  IS THE LIE AND WHICH IS THE TRUTH?
• A. THE FIRST IS A LIE, THE SECOND IS THE TRUTH
• B. THE FIRST IS THE TRUTH, THE SECOND IS A LIE

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• 15
• WHICH IS THE LIE AND WHICH IS THE TRUTH?
• A. THE FIRST IS A LIE, THE SECOND IS THE TRUTH
• B. THE FIRST IS THE TRUTH, THE SECOND IS A LIE

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• 19
• WHICH IS THE LIE AND WHICH IS THE TRUTH?
• A. THE FIRST IS A LIE, THE SECOND IS THE TRUTH
• B. THE FIRST IS THE TRUTH, THE SECOND IS A LIE

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• 24
• WHICH IS THE LIE AND WHICH IS THE TRUTH?
• A. THE FIRST IS A LIE, THE SECOND IS THE TRUTH
• B. THE FIRST IS THE TRUTH, THE SECOND IS A LIE

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• 30
• WHICH IS THE LIE AND WHICH IS THE TRUTH?
• A. THE FIRST IS A LIE, THE SECOND IS THE TRUTH
• B. THE FIRST IS THE TRUTH, THE SECOND IS A LIE
• C. BOTH ARE LIES