(p. 214).
In short, even if one is willing to overlook all of the glaring flaws with polygraphs and the ultimate impossibility of accurately measuring their accuracy, the best that can be said about them is that they detect deception better than random chance. Though it likely need not be said, "better than flipping a coin" seems a paltry justification for the still-widespread use of polygraphs in the criminal justice system.
This study has attempted to demonstrate that polygraphs are not only ineffective, but that their widespread use actually contributes to shoddy police work and encourages a culture of arrogance and unaccountability by widening the gap between scientific evidence and those who claim to practice scientifically investigation methods. Two large-scale studies of the available literature regarding the accuracy and efficacy of polygraph testing, conducted twenty years apart, found that the many variables present during the administration of a polygraph test preclude said tests from being considered with any kind of widely applicable barometer of accuracy, and furthermore, when accuracy can be determined in any kind of quantitative fashion, the most precise that determination can be is "better than chance but far from accurate." Even the one context...
Hypothesis Five In the fifth hypothesis of measuring the business ethics levels of Taiwanese ITPs the Null and Alternative Hypotheses are defined as follows: H0: In the ethical climate of independence, the business ethics level of Taiwanese ITP's is high. H1: In the ethical climate of independence, the business ethics level of Taiwanese ITP's is low. Results of Testing Hypothesis Five It has been established in the fourth hypothesis that the greater the ethical climate
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