John received a z score of 0.5 on an exam.Peter received a T score of 60 on that same exam.What can be said about their relative performance on the exam?
A) There is not enough information to compare John's and Peter's exam scores.
B) Peter received a higher raw score than John on the exam.
C) John received a higher raw score than Peter on the exam.
D) The two test-takers actually received the same score on the exam.

Question

Quizplus · Accepted Answer

A z-score of 0.5 corresponds to a percentile rank of approximately 69, meaning John scored higher than 69% of test takers.

A T-score of 60 corresponds to a percentile rank of approximately 84, meaning Peter scored higher than 84% of test takers.

Since Peter's T-score corresponds to a higher percentile rank than John's z-score, we can conclude that Peter performed better on the exam than John.

Choice B is the correct answer because it indicates that Peter received a higher raw score than John.

John Received a Z Score of 0