Polygraph Quiz

What is the purpose of a polygraph?

• To detect lies through facial expressions

• To monitor heart rate

• To analyze brain activity

• To measure stress levels

What physiological changes does a polygraph measure?

• Breathing rate, cardiovascular signal, electro thermal signal

• Digestive system activity, hormone levels, bone density

• Blood pressure, muscle tension, body temperature

• Brain waves, eye movement, skin color

What is the electrodermal signal used to measure?

• Visual acuity

• Muscle strength

• Response of sympathetic nervous system

• Blood sugar levels

What is the purpose of control questions in a polygraph test?

• To induce stress in innocent individuals

• To differentiate between relevant and irrelevant questions

• To confuse the test subject

• To measure physical fitness

What is a potential drawback of using polygraphs in real-life situations?

• Polygraphs can only detect physical reactions, not emotions

• Volunteers may not take the test seriously

• Polygraphs are too expensive to use regularly

• The accuracy decreases with increased knowledge about polygraphs

What is a common misconception about polygraphs?

• They are used primarily for entertainment purposes

• They work equally well in lab tests and field situations

• They can accurately detect lies in all individuals

• They are always reliable in identifying spies

What is the main concern regarding the use of polygraphs in job interviews?

• They are too intrusive on personal privacy

• They are not effective in detecting spies

• They discriminate against individuals with less knowledge

• They may lead to false confessions

What is a potential issue with relying on polygraphs to determine honesty?

• They are only effective in detecting major crimes

• They require physical contact with the test subject

• They are too complex for accurate interpretation

• They can be manipulated by skilled individuals

What is the purpose of the committee mentioned in the text?

• To review the evidence on polygraph accuracy

• To develop new polygraph technologies

• To promote the use of polygraphs in law enforcement

• To train individuals in polygraph administration