The ability of a measuring instrument to measure what it is supposed to measure is the basic purpose of ____.
A)reliability
B)validity
C)sensitivity
D)indexing

Question

Quizplus · Accepted Answer

Validity refers to the degree to which a measuring instrument measures what it is supposed to measure. Reliability refers to the consistency of the results obtained from a measuring instrument. Sensitivity refers to the ability of a measuring instrument to detect small changes or differences in what it is measuring. Indexing refers to the process of organizing data or information into an easily retrievable format. Therefore, B (validity) is the most appropriate choice for the given statement.

The Ability of a Measuring Instrument to Measure What It