The ability of a selection device to measure the same thing consistently is called __________.
A) reliability
B) validity
C) acceptability
D) probability
E) consistency

Question

Quizplus · Accepted Answer

Reliability refers to the consistency or stability of scores obtained from a selection device. If a selection device is reliable, it will provide consistent measurements across time, different groups of people, and different forms or versions of the test. Validity, on the other hand, refers to the accuracy or truthfulness of scores obtained from a selection device. Acceptability and probability are not related to the reliability of a selection device. Consistency is a similar concept to reliability, but it is not a commonly used term in psychometric measurement.

The Ability of a Selection Device to Measure the Same