Practice Test Geeks(CPE) Certified Polygraph Examiner Practice Test
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Data Analysis Flashcards

7 cards from real CPE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. In Backster's scoring system, a score of '-1' on a relevant question indicates:

    Answer: A slight response favoring the relevant question

    In Backster's system, a -1 score means the relevant question produced a slightly stronger physiological reaction compared to the comparison, suggesting a mild deception-consistent response.

  2. Which analysis method requires a blind examiner to score charts without knowledge of the case facts or prior analysis results?

    Answer: Blind chart analysis

    Blind chart analysis requires the scoring examiner to have no knowledge of case facts, prior opinions, or context to eliminate confirmation bias.

  3. When analyzing electrodermal activity (EDA), what response feature is most significant for scoring comparison versus relevant question reactions?

    Answer: Amplitude and duration of response onset relative to question stimulus

    Examiners score EDA by evaluating the amplitude and onset timing of responses to each question stimulus, comparing the relative magnitude between comparison and relevant questions.

  4. During spot analysis, a polygraph examiner compares the physiological response to a relevant question against:

    Answer: The response to the immediately adjacent comparison question

    Spot analysis evaluates each relevant question's response against the comparison question that is structurally adjacent to it in the test format.

  5. What is the primary purpose of calculating 'Total Chart Minutes' (TCM) in polygraph data analysis?

    Answer: To quantify the amount of physiological data available for scoring

    TCM quantifies the total usable physiological recording time across all charts, providing an estimate of data sufficiency for reliable analysis.

  6. When using the Numerical Scoring System, an 'inconclusive' determination is typically rendered when the total score falls within which range?

    Answer: -5 to +5 using a ±6 decision rule

    Under common decision rules (e.g., ±6 cutoff), scores between -5 and +5 do not meet the threshold for either DI or NDI, resulting in an inconclusive determination.

  7. Which of the following best describes 'inter-rater reliability' in the context of polygraph data analysis?

    Answer: The degree of agreement between two or more independent examiners scoring the same charts

    Inter-rater reliability measures how consistently different trained examiners arrive at the same scoring outcome when independently analyzing the same set of polygraph charts.