What does it mean if the reliability of a test is above 0.9?
A)At least 90 percent of all people get the correct score.
B)The test measures 90 percent of someone's capability.
C)The test measures what it claims to measure.
D)The test measures something in a fairly repeatable manner.

Question

Quizplus · Accepted Answer

If the reliability of a test is above 0.9, it means that the test measures something in a fairly repeatable manner. Reliability refers to the consistency and stability of the test scores over time and across different samples. A reliability coefficient of 0.9 or higher indicates a high degree of reliability or consistency, which means that the test scores are likely to be similar or stable across different administrations or raters. However, it does not necessarily mean that the test measures what it claims to measure or that a certain percentage of people will get the correct score.

What Does It Mean If the Reliability of a Test