An advantage of the interquartile range as a measure of variability is that it
A) is not sensitive to extreme scores.
B) takes all score values into consideration.
C) only considers the highest and lowest scores in the distribution.
D) is not influenced by the middle scores in the distribution.

Question

Quizplus · Accepted Answer

The interquartile range is calculated using the middle 50% of scores in a distribution, which makes it less sensitive to extreme scores. This is an advantage because extreme scores can skew the mean and standard deviation, which may not accurately represent the typical range of scores in the distribution. Additionally, because the interquartile range only considers the middle 50% of scores, it is not influenced by the highest or lowest scores or the middle scores in the distribution, which can be an advantage in certain situations.

An Advantage of the Interquartile Range as a Measure of Variability