Question

 Who invented the polygraph test?

Answer The polygraph machine was developed in 1921 by psychiatrist Dr. John A. Larson. Larson's machine was the first to measure blood pressure, respiration and pulse. The same year, Dr. Leonard Keeler,... Read More »
http://www.answerbag.com/q_view/2043312

Top Q&A For: Who invented the polygraph test

What does a polygraph test measure?

Polygraph tests measure the body's physiological reactions to certain questions, according to the Skeptic's Dictionary. Theoretically, since people tend to get nervous when lying, you can tell if s... Read More »
http://www.answerbag.com/q_view/2031797

How to Know If You Passed a Polygraph Test?

A polygraph exam, regardless of the purpose, is a physiological measurement tool used to determine truthfulness or deception. The examinee is connected to the polygraph machine in a way that heart ... Read More »
http://www.ehow.com/how_8361728_passed-polygraph-test.html

What does the polygraph test check for?

A polygraph test is meant to determine whether or not a person is being truthful. Sometimes called a lie detector test, the polygraph measures changes respiration, heart rate and sweat gland activi... Read More »
http://www.answerbag.com/q_view/2255352

How to Deal With a Police Polygraph Test?

Many police departments give a polygraph test as part of their hiring process- refusal to take it will almost certainly bar you from getting the job. If you have something to hide, you'll need to k... Read More »
http://www.wikihow.com/Deal-With-a-Police-Polygraph-Test


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