When using non-parametric tests, which measure of central tendency is preferred when summarizing a set of data?
A) Median
B) Mean
C) Mode
D) None of the above are appropriate.

Question

Quizplus · Accepted Answer

When using non-parametric tests, the data may not follow a normal distribution and therefore the mean may not accurately represent the center of the data. The median is a better measure of central tendency as it is not influenced by extreme scores, making it more reliable in non-parametric analysis. The mode is rarely used as a measure of central tendency in non-parametric tests as it is not always clearly defined, especially with continuous data.

When Using Non-Parametric Tests, Which Measure of Central Tendency Is