If the reliability coefficient of a test is determined to be .27,what percentage is attributed to random chance or error?
A)27%
B)73%
C)2.7%
D)unknown percentage

Question

Quizplus · Accepted Answer

73% of the variance in test scores is attributed to random chance or error, as the reliability coefficient (0.27) indicates that 27% of the variance is due to true score variance, leaving 73% due to error.

If the Reliability Coefficient of a Test Is Determined to Be