A politician says he is tired of criminals "getting away with crimes." He thinks all people arrested for criminal offenses should be given a polygraph examination and cites a recent report in which polygraphs identified 90 percent of criminals in

a study of staged crimes. Being a good psychological detective, what question do you think this politician should ask?
a) "What polygraph method was used?"
b) "How experienced were the polygraph examiners?"
c) "How many people were found to be false positives?"
d) "What is the correlation between physiological arousal and criminality?"

C

Psychology

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