What is the highest possible reliability of a test?
A)0
B)1
C)100
D)Infinity

Question

Quizplus · Accepted Answer

The highest possible reliability of a test is 1, which indicates perfect reliability or consistency of the test scores over time and across different test administration conditions. A reliability coefficient of 1 means that all of the variation in the test scores is due to true individual differences in the construct being measured, and there is no measurement error or random variation in the scores. Therefore, choice B is the correct answer. A reliability coefficient of 0 indicates no reliability or consistency, whereas infinity is not a valid value for a reliability coefficient.

What Is the Highest Possible Reliability of a Test