Why No One Talks About Tests Anymore

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What You Should Know About Lie Detectors. The easiest way to determine the character of those employed in an organization and those who are yet to be employed is through the lie detector test. Sadly, most people do not consider the lie detector test as the best form of getting evidences and determining character. Besides, there are those convinced that the lie detector test is the best way to go as it makes it easier for someone to know if the subject at hand is telling the truth or not. Professionals involved in the science do not like to use the term and prefer the word polygraph. Polygraph works in a very interesting way that it is able to measure different levels of the body helping to figure out if someone’s lying or not. The person judging is able to check out if the reaction of the body and the answers match, thus able to determine if the subject is telling the truth or not. The machine, once an analog machine, has now changed over the years to be a digital one.
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The polygraph detector easily detects the respiratory rate, heart rate, and amount of perspiration through the finger-tips of the person at hand. Next, the examiner will begin to evaluate the test of the test and study any difference in the results of the behavior. The subject at hand has wires and tubes closely going through from the machine to the subject in question. Knowing the version of the story of the subject becomes easier in such cases. However, in this part, the lie detector is not used. Observation and monitoring by the examiner is done in this stage. Afterwards, the examiner sets questions for the subject to answer. Fortunately, the lie detector is able to test about 60-70% control questions that require general answers and in fact many people have trouble answering “no”. Many described this test as a complete science because it function using scientific ways. Many people suggest that the people who conduct the interview should take into account their subjects cultural background, religious beliefs etc. Disputation Frankly, most people argue that the lie detector has both false positive and negatives. For example, a false positive is where someone tells the truth, but it reads as a lie and a false negative is where someone lies but it tells it as the truth. People say that there’s a way to beat the machine by doing something like biting their lip each time a query is asked. Another challenge noticed by many is that the polygraph is inconsistent. Certainly, there are two kinds of states; those who allow anyone to become an examiner while others deny it till one has gone through some formal training.