Which term is an interview tool measuring physiological responses, sometimes used in applicant screening?

• A. Guardians Association v. Civil Service Commission
• B. probationary period
• C. Polygraph
• D. Law Enforcement Education Program

Answer: (C)

A polygraph is the instrument that records physiological signals—such as heartbeat, breathing, skin conductance, and sometimes blood pressure—while questions are asked. The idea is that deceptive answers may produce detectable changes in these autonomic responses, which is why it’s described as an interview tool measuring physiological responses. In practice, polygraphs have been used in some applicant screening contexts, but their reliability is debated and many places restrict or prohibit their use in pre-employment checks. The other options refer to a civil service case, a period of employment, or a training program, none of which involve measuring physiological responses during an interview.