The nurse researcher opts to use a measure of variability.Which measure of variability does the researcher recognize as being the most unstable?
A) Mean
B) Median
C) Range
D) Semiquartile range

Question

Quizplus · Accepted Answer

Correct C: The range is very likely to be changed by a single extreme score.
Incorrect A: Mean is a measure of central tendency.
Incorrect B: Median is a measure of central tendency.
Incorrect D: The semiquartile range is more stable than the range; it is less likely to be changed by a single extreme score.

The Nurse Researcher Opts to Use a Measure of Variability