The degree to which test instruments measure what they are intended to measure is known as ______.
A) reliability
B) stability
C) rigor
D) validity

Question

Quizplus · Accepted Answer

Validity refers to the accuracy of a test in measuring what it is intended to measure, whereas reliability refers to the consistency of results obtained with a test. Stability and rigor are not directly related to the accuracy of a test measurement.

The Degree to Which Test Instruments Measure What They Are