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LIE DETECTION ACCURACY

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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LIE DETECTION ACCURACY

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  1. LIE DETECTION ACCURACY

  2. 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.

  3. 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.

  4. DETECTION VARIABLES • DOES FOREWARNING INCREASE ACCURACY? • DOES EXPERIENCE WITH POTENTIAL LIARS INCREASE ACCURACY? • DOES KNOWLEDGE OF THE LIAR INCREASE ACCURACY

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

  6. DETECTION STRATEGIES FOR PROBING & INTERROGATION • INTIMIDATION • SITUATIONAL FUTILITY • DISCOMFORT AND RELIEF • BLUFF • GENTLE PRODS • MINIMIZATION • CONTRADICTION

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

  8. 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

  9. 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:

  10. 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

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

  12. 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

  13. #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

  14. #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

  15. #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

  16. #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

  17. #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

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