A Sniffer Is a Detection Device That

question 54

Multiple Choice

A sniffer is a detection device that:

• A)uses air temperature and the presence of off-gassing to determine whether a scene is safe to enter.
• B)takes a sample of air and identifies the approximate quantities of explosive material in the sample.
• C)takes a sample of air and identifies the quality of the smoke and what type of igniter was used to set the fire.
• D)uses gun powder to fire a jet of water or a projectile at a particular component of an explosive to make it safe.

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Definitions:

Concurrent Validity

Validity assessment obtained when a test score and criterion performance measure are collected at approximately the same time.

Construct Validity

The extent to which a test measures what it claims to measure, indicating the accuracy of the theoretical concept.

Previous Knowledge

Information or understanding that an individual possesses before learning new material or engaging in new experiences.

Criterion Data

Criterion data are objective measures used as standards to evaluate the performance or outcomes of tests, procedures, or candidates in various contexts.