Which of the following standard scores reflects the poorest relative performance on a test?
A)z = +2.34
B)z = 0.00
C)z = -1.21
D)z = -1.84

Question

Quizplus · Accepted Answer

Standard scores are based on a normal distribution, with a mean of 0 and a standard deviation of 1. A negative standard score indicates a below-average performance relative to the mean. The further below the mean, the lower the standard score. Therefore, in this list, the lowest standard score is -1.84, indicating the poorest relative performance on the test.

Which of the Following Standard Scores Reflects the Poorest Relative