A standardized test reports results in terms of T-scores. Joan obtains a T-score of 50 and her parents do not understand the score. What is the proper way to interpret this score?
a. Joan's performance is near the bottom of the group.
b. Joan's performance is equal to the group's average.
c. Joan's performance is in great need of improvement.
d. Joan has mastered 50 of the material.
Question 2
A standardized test has a mean of 40 and a standard deviation of 10 . Ashley's percentile rank is 45 while Sophia's is 50 . Bill's percentile rank is 50 while Chad's is 55 . Blake's percentile ranks is 90 while Jesse's is 95 . For which pair of students is the difference in raw scores likely to be largest?
a. Ashley vs. Sophia
b. Bill vs. Chad
c. Blake vs. Jesse
d. None. The difference in raw scores is likely to be the same for each pair.
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