When figuring a correlation coefficient,scores are first converted to Z scores because
A)the standard deviation is the same for every variable.
B)scores can never be more than 2 standard deviations from the mean.
C)all scores are on a consistent 0 to 1 scale.
D)high scores are positive numbers,and low scores are negative numbers.

Question

Quizplus · Accepted Answer

Z scores standardize the data by converting raw scores into a scale where the mean is 0 and the standard deviation is 1, making high scores positive and low scores negative.

When Figuring a Correlation Coefficient,scores Are First Converted to Z