If the score reliability of a test decreases, the standard error of measurement will
A) decrease.
B) increase.
C) stay the same.
D) decrease only if the standard deviation decreases.

Question

Quizplus · Accepted Answer

The standard error of measurement (SEM) is directly proportional to the standard deviation of the test scores and inversely proportional to the square root of the reliability coefficient. Therefore, if the reliability coefficient decreases, the SEM will increase.

If the Score Reliability of a Test Decreases, the Standard