For a given raw score to be converted into a z score, one must know both the mean and standard deviation of the raw score distribution.

Question

Quizplus · Accepted Answer

This is true. The formula for calculating the z score involves subtracting the mean of the raw score distribution from the specific raw score, and then dividing that result by the standard deviation of the raw score distribution. Without knowing the mean and standard deviation, it is not possible to accurately calculate the z score.

For a Given Raw Score to Be Converted into a Z