ISSN : 1229-0653
One hundred twenty two police officers and 160 college students were surveyed on their beliefs about vocal and nonverbal characteristics of lying. Beliefs about the content of deceptive statements were also assessed using 19 criteria of Criteria-Based Content Analysis(CBCA). Both police officers and college students thought their own lies were not likely to be detected but they were not very confident of detecting other people's lying. Police officers and college students shared similar beliefs regarding vocal and nonverbal characteristics of lying. Compared to actual behavior of deceptive criminal suspects, participants' beliefs on vocal characteristics were relatively accurate whereas those about nonverbal characteristics and statement content of deceptive statements were relatively inaccurate. Both groups accurately believed some criteria of CBCA would appear more often in truthful statements than in deceptive statements, although they thought other CBCA criteria would appear more often in deceptive statements. Overall the results are similar to those of previous studies from western countries. Dangers of relying on incorrect beliefs in making interpersonal judgments, especially for police officers, were discussed.
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