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LIE DETECTION ACCURACY - PowerPoint PPT Presentation


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LIE DETECTION ACCURACY. WITHOUT EQUIPMENT AND STRANGERS AS TARGETS, 50-60% IS THE USUAL LEVEL OF ACCURACY BUT WE MAY KNOW MORE THAN ACCURACY RATES SUGGEST

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Presentation Transcript
slide2
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.
slide3
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.
detection variables
DETECTION VARIABLES
  • DOES FOREWARNING INCREASE ACCURACY?
  • DOES EXPERIENCE WITH POTENTIAL LIARS INCREASE ACCURACY?
  • DOES KNOWLEDGE OF THE LIAR INCREASE ACCURACY
slide5
DOES CULTURAL SIMILARITY OF LIAR AND DETECTOR INCREASE ACCURACY?
  • DOES PROBING INCREASE ACCURACY?
  • DO PERSONALITY CHARACTERISTICS OF LIAR AND DETECTOR AFFECT ACCURACY?
detection strategies for probing interrogation
DETECTION STRATEGIES FOR PROBING & INTERROGATION
  • INTIMIDATION
  • SITUATIONAL FUTILITY
  • DISCOMFORT AND RELIEF
  • BLUFF
  • GENTLE PRODS
  • MINIMIZATION
  • CONTRADICTION
slide7
ALTERED INFORMATION
  • CHINK IN THE DEFENSE
  • POINT OUT DECEPTION CUES
  • CONCERN
  • KEEPING THE STATUS QUO
parent adolescent child strategies for detecting deception
PARENT-ADOLESCENT CHILD STRATEGIES FOR DETECTING DECEPTION
  • USED: INTIMIDATION, CONTRADICTION, GENTLE PRODS
  • ALSO USED: SELF-DISCLOSURE
  • PARENTS STUCK WITH STRATEGY EVEN IF IT DIDN’T WORK
  • DIFFERENT VERSION OF THE TRUTH BIAS
slide9
ADOLESCENTS COULD IDENTIFY ABOUT 50% OF THEIR PARENT’S DETECTION STRATEGIES
  • THE DISCLOSURE TACTIC WAS NOT OFTEN IDENTIFIED
  • PARENTS ASSOCIATED THE FOLLOWING BEHAVIORS WITH DECEIT:
slide10
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
slide11
PLAYING WITH CLOTHING
  • FIDGETING
  • HEAD TURNED DOWNWARD
  • BODY ORIENTATION AWAY
  • SMILING
  • DECREASED VOICE VOLUME
  • EXCESSIVE USE OF GESTURES
  • IDIOSYNCRATIC CUES
interpersonal perception test
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
slide13
#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
slide14
#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
slide15
#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
slide16
#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
slide17
#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