What is the purpose of measuring a questionnaire's reliability?
A) To examine the consistency of a measure.
B) To determine whether a test measures what it should be measuring.
C) To generalize the findings to a wider population.
D) To decide whether the test or questionnaire is robust enough to be applied to different populations.

Question

Quizplus · Accepted Answer

The purpose of measuring a questionnaire's reliability is to examine the consistency of the measure. This is done through measures such as test-retest reliability, inter-rater reliability, and internal consistency. It assesses whether the instrument used is reliable and consistent in giving the same results under consistent conditions. Choice B is referring to the validity of the test, not the reliability. Choices C and D are not specific to the purpose of measuring the reliability of a questionnaire.

What Is the Purpose of Measuring a Questionnaire's Reliability