Which of the following statements about the properties of reliability and validity of a psychometric test is correct?
A) Reliability of a test is a necessary but not sufficient condition for having a psychometrically sound instrument.
B) Reliability of a test is a sufficient condition for having a psychometrically sound instrument.
C) Validity of a test is a necessary but not sufficient condition for having a psychometrically sound instrument.
D) Either reliability or validity of a test is sufficient for having a psychometrically sound.

Question

Quizplus · Accepted Answer

Reliability, which refers to the consistency of a test's results, is necessary for a test to be considered psychometrically sound. However, reliability alone is not enough; validity, which measures whether the test actually assesses what it claims to, is also required.

Which of the Following Statements About the Properties of Reliability