POLYGRAPH TEST Meaning and
Definition
-
A polygraph test, also known as a lie detector test, is a scientific examination aimed at determining the truthfulness or deception in an individual's verbal responses through various physiological measurements. The word "polygraph" originates from Greek, where "poly" means "many" and "graph" signifies "writing," implying that multiple physiological responses are recorded during the test. This investigative tool is commonly employed in criminal justice systems, law enforcement agencies, and security processes.
During a polygraph test, an individual is connected to several instruments that monitor their physiological responses, including blood pressure, heart rate, respiration, and galvanic skin response. These physiological indicators provide insights into the person's anxiety levels, emotional arousal, and stress that may be associated with deceptive behavior. The test typically involves a series of structured questions, and the individual's reactions are recorded on a polygraph chart.
The interpretation of the polygraph test results is conducted by an expert polygraph examiner who analyzes the patterns and changes in the physiological responses in relation to the questions asked. Although the polygraph test is considered a useful tool, it is important to note that it is not foolproof and its accuracy is still debated. False positives and false negatives can occur due to various factors, including the examinee's emotional state, countermeasures employed to deceive the test, or the examiner's interpretation.
Overall, the polygraph test serves as an investigative aid that can provide valuable information, but it should not be solely relied upon as conclusive evidence of truth or deception. Moreover, the test's results are generally not admissible in a court of law in many jurisdictions, emphasizing the need for corroborating evidence in legal proceedings.
Common Misspellings for POLYGRAPH TEST
- oolygraph test
- lolygraph test
- 0olygraph test
- pilygraph test
- pklygraph test
- pllygraph test
- pplygraph test
- p0lygraph test
- p9lygraph test
- pokygraph test
- popygraph test
- pooygraph test
- poltgraph test
- polggraph test
- polhgraph test
- polugraph test
- pol7graph test
- pol6graph test
- polyfraph test
- polyvraph test
Etymology of POLYGRAPH TEST
The word "polygraph" is derived from Greek. It combines the Greek words "poly", meaning "many", and "graphē", meaning "writing" or "graph". Therefore, the term "polygraph" literally translates to "many writings" or "multiple recordings".
The polygraph test, also known as a lie detector test, measures and records various physiological responses of an individual simultaneously. These responses include changes in blood pressure, heart rate, respiration, and skin conductivity. The multiple recordings refer to the various graphs or charts generated by the polygraph machine, which illustrate these physiological reactions during the test.
Infographic
Add the infographic to your website:
