With the Kruskal-Wallis test, the data from all k samples are combined and each observation is assigned a rank.What is done in the case of equal values?
A) As the data are all from continuous distributions, this will never happen.
B) The observations are assigned the mean rank for their positions in the ordered list.
C) The observations are thrown out and not considered in the analysis.
D) The equal values are arbitrarily assigned an appropriate rank in sequence.

Question

Quizplus · Accepted Answer

When there are ties (equal values), the mean rank is used for all tied observations. This approach ensures that the sum of the ranks equals the sum of the integers from 1 to N, where N is the total number of observations.

With the Kruskal-Wallis Test, the Data from All K Samples