The major disadvantage of percentile ranks as a kind of derived score is that
A) they are not readily intelligible to the public
B) they cannot be determined accurately
C) they are suitable only when distribution is normal
D) changes in raw scores are not necessarily reflected by proportionate changes in percentile ranks

Question

Quizplus · Accepted Answer

Percentile ranks can be misleading because they do not reflect equal intervals; small changes in raw scores can result in large changes in percentile ranks, especially at the extremes of the distribution.

The Major Disadvantage of Percentile Ranks as a Kind of Derived