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WorksheetsPOLYGRAPH PRE BOARD 2026
Total questions: 40
Worksheet time: 40mins
Which is NOT true regarding polygraph?
Recording of systolic blood pressure
Recording of blood pressure, respiration, and skin conductivity
Literally, to write copiously
Determining truth and deception through physiological reactions
Which is NOT a physiological reaction that is recorded by a polygraph instrument?
Motor tracing
Heart rate
Respiration
Skin conductivity
Which is NOT true regarding polygraph examination?
To use polygraph result as guide in court decision
A conscious mental effort to deceive causes involuntary physiological changes.
To record identifiable physiological reactions of the subject
To test an individual for the purpose of detecting deception
Which of the following statements is NOT correct?
Polygraph – the manner in which selected physiological activities are separately collected and recorded.
Deception – involves acting in such a way that leads another person to believe something that you do not believe to be true.
Deception Detection/Lie Detection – determining whether someone is lying.
Detection – the act of discovering the fact.
As a polygraph examiner, you are aware that the following are the purposes in conducting polygraph examination, EXCEPT?
ensnare suspects to confess to the crime as instigated by the examiner
ascertain if a person is telling the truth
locate the fruits or tools of the crime and whereabouts of wanted persons
obtain additional investigation leads to the facts of the case/offenses
Which of the illustration is an example of polygraph chart?
I
II
III
IV
Criminal investigators must exert all efforts to determine lying not only on the part of the suspect but as well as to everyone involved in the criminal act – witnesses, victims, etc. By analogy, which of the following is in conformity with the preceding statement?
True, because they have to know the whole truth.
False, because a suspect is the one to be prosecuted.
True, because they need to sentiments of all parties.
False, because all actions should point to the suspect.
The term “truth serum” is a misnomer. If you apply this, you know very well that one reason is that the procedure does not make someone tell the truth. What should be the other reason?
the thing administered is not a serum but is actually a drug.
it does not induce someone to be honest upon administration of the serum.
the term serum refers to blood separation from solid portion during clotting.
it inhibits the inhibitor.
When a person speaks, there are audible voice frequencies, and superimposed on these are the inaudible frequency modulations which are products of minute oscillation of the muscles of the voice mechanism. What other term is used for oscillations of the muscles?
microtremor
audible tremor
macrotremor
vocal tremor
What method can detect, measure, and graphically display the voice modulations that we cannot hear?
Psychological Stress Evaluator
Lie Detector or Polygraph
Use of Drugs that “Inhibit the Inhibitor”
Word Association Test
What symptom of lying is manifested when the subject is constantly moving about in the chair, pulling his ears, rubbing his face, picking and tweaking the nose, crossing or uncrossing the legs, rubbing the hair, eyes, eyebrows, biting or snapping of fingernails, etc?
Fidgeting
Excessive movement
Hyperactivity due to troubled conscience
Peculiar feeling inside
What involves during body’s adaptation to environment is described as a complicated system of internal checks and balance?
autonomic nervous system
endocrine system
integumentary system
peripheral system
Which the following statements regarding the theory of polygraph and lying is NOT correct?
In today’s technology, computers can detect deception on the part of any human being.
The body adapts itself as efficiently as possible to its environment.
Polygraph uses the principle that bodily functions are influenced by mental condition.
There is no instrument that could detect lies.
In the conduct of polygraph test, the physiological changes accompanying deception are capable of being any of the following, EXCEPT?
detected
interpreted
measured
recorded
In polygraph test, what is this “emotion of fear” present on a lying subject in which you are interested?
Fear of exposure
Derivated factor
Fear factor
Nervousness
Which of the following is consistent with the principle in polygraph examination?
A conscious effort of mentally normal person’s lie causes physiological changes.
A person “tunes out” which indicates trouble or danger by having his sense organs reacts.
Changes in pulse rate, blood pressure, etc can be recorded, measured and interpreted .
Lying always produces physiological changes that can be detected.
What "tune out" on a truthful subject?
Relevant questions
Irrelevant questions
Control questions
Control questions
A mechanism of the body that regulates and corrects the slightest deviation from a particular standard within very fine limits.
autonomic nervous system
central nervous system
peripheral nervous system
somatic nervous system
What requires us to do in a stressful emergency situations?
“fight” or take “flight”
“attack” and “counter-attack”
“rest” and “digest”
“rest” and “recreation”
Which of the following illustrates an ideal interrogation room?
I
II
III
IV
What is the foremost value of polygraph in a criminal investigation?
Investigative aid
Establishment of credibility
Evaluation of truthfulness
Verification of statement of victims/complainants
Which is NOT a purpose of a polygraph test?
Intrusion of suspect’s privacy
Counter-intelligence
Loyalty check
Pre-employment screening
Complete the sentence. Should there be any explanations to make, the subject of the polygraph test is instructed to wait until _____.
the termination of the test.
after polygraph examiner has made the necessary marks in the stimulus marker.
the end of the question.
the examiner has declared suspension of the test to hear the said explanation
Which of the following is NOT a standard test question?
Steering
Control
Relevant
Irrelevant
What conclusion can be made on a subject when no significant difference between the relevant and irrelevant questions?
truthful
guilty
deceptive
not telling the truth
Which is NOT descriptive of the control question?
Questions are limited in number to avoid discomfort to the subject.
Questions are less serious as compared to relevant questions under investigation.
Questions are of similar nature.
Questions are unrelated to the matter under investigation.
What is the interpretation if the response to the added guilt complex question is similar to the real issue questions?
No conclusion can be drawn.
Subject is employing techniques to defeat the test.
Subject was deceptive to the primary issue.
The subject will develop tension.
In a series of decisions of the Supreme Court of the United States, the non-admissibility of the lie detector test was uniformly ruled. There were various reasons given. Which is NOT among the reasons?
has not gone to level of proof beyond reasonable doubt.
has not been given approval as being accurate by the scientific community.
has not gained a degree of development beyond the experimental stage.
has not obtained reasonable degree of accuracy.
Which is NOT true regarding the issue of admissibility of a polygraph test?
There must be the way to assure that a qualified examiner administered the test.
Subject may unwittingly waive his or her right against self-incrimination.
The test itself cannot be relied upon because it has many errors.
The trier of fact is apt to give almost conclusive weight to the polygraph expert’s opinion.
Complete the sentence. In State v. Valdez (91 Ariz. 274, 371 p. 2d 894), the result of the lie detector test may be admissible if there is _____.
stipulation of the parties and counsels.
competent polygraph examiner.
court admits the result.
waiver of the right.
What is the objective of proper attachment of polygraph components?
Obtain optimum physiological data from an examinee.
Condition the subject's mind to the polygraph test's accuracy.
Get an error-free record of the body reactions of the subject.
Make the result of the test admissible in a court of law.
When will the evaluation of the proper attachment of each component be made?
At the beginning of the data collection phase
At the end of the data collection phase
During the data collection phase
During pretest interview
. Which is NOT the purpose of interrogation?
Know any anti-social activity or criminal record of the subject.
Clarify the findings.
Learn reasons of subject’s answers to relevant question, other than knowledge of crime.
Obtain additional information for police purposes, if the results suggest deception.
Complete the sentence. The subject responding more to the relevant questions is considered as ______________.
not telling the truth
doubt-certain
innocent
truthful
What accessory of polygraph machine those the illustration shows?
The abdominal and thoracic pneumographs register the respiratory activity of the examinee.
The sphygmomanometer consisting of a blood pressure cuff and a manometer register cardiovascular activity.
The galvanometer registers the electro-dermal activity, sweat.
The movement sensor monitors voluntary and involuntary movements of the examinee during physiological data collection.
What accessory of polygraph machine those the illustration shows?
Abdominal and Thoracic Pneumograph
Breathing sensor
Respiration sensor
Thoracic Pneumograph
Find in the choices which illustrate or show the accessories of the polygraph register the psychophysiological respiration activity of the examinee during stimuli presentation.
Which of the following is an accessory to the polygraph attached to the body of the examinee to register the psychophysiological sweeting sensitivity activity during stimuli presentation?
Which of the following is an accessory to the polygraph consisting of a blood pressure cuff and a manometer that registers cardiovascular activity?
· Sphygmomanometer
Galvanometer
Blood presure cuff
Pump bulb
Which of the following is an accessory to the polygraph attached to the body of the examinee to register the psychophysiological heart rate activity during stimuli presentation?
