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Ordinal Testing
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N group 1
N group 2
Number of Runs,
Total group 1 or


W-W Runs Test

Ordinal testing
provides three tests for two sample
ordinal comparisons. It concerns a
comparison between two groups,
such as male or female, dead or alive,
who are in some way ordered. The
ordinal tests assess how probable it is
that the two groups come from a
single ordering and that differences
observed are caused by chance
fluctuation, or that the two groups
come from different orderings.