Variables with levels that simply name a group are said to be measured on a nominal scale. Categorical variables can also be measured using an ordinal scale, which means that the levels of the ...

You often use them to rank or order things. Most ordinal numbers end with a 'th' sound, like 'fourth' or 'fifth'. However, they can also end with a 'st', 'nd' or 'rd'. You can write ordinal ...

The Jonckheere-Terpstra test is appropriate for a contingency table in which an ordinal column variable represents the response. The row variable, which can be nominal or ordinal, represents the ...