The scores on Dr. Katz's tests always had a mean of 50 and a standard deviation of 10. What statement best explains this phenomenon?
A) The same descriptive statistics for each test is a coincidence.
B) Dr. Katz grades his tests using a normal curve.
C) Dr. Katz converts his students' raw scores to z scores.
D) Dr. Katz converts his students' raw scores to T scores.

Question

Quizplus · Accepted Answer

Dr. Katz is likely converting his students' raw scores to T scores, as T scores are standardized scores that have a mean of 50 and a standard deviation of 10. This method is used to standardize test results to a common scale.

The Scores on Dr