A z-score of zero always means that
A)the raw score does not exist.
B)the raw score exists but is negligible.
C)the raw score almost never occurs.
D)the raw score is equal to the mean.

Question

Quizplus · Accepted Answer

A z-score of zero reflects a raw score that is exactly equal to the mean. Therefore, choice D is the correct answer. Choices A, B, and C are incorrect because they suggest that a z-score of zero implies that the raw score is nonexistent, negligible, or rare, respectively, but none of these interpretations reflect the true meaning of a z-score of zero.

A Z-Score of Zero Always Means That