Is it Possible to Perform a Trend Test for Continuous Variable by 4-Level Ordinal Variable
Jan 3, 2019 6:10 PM(312 views)
Hi JMP Community,
I have this rather simple problem that bugs me: I would like to take advantage of the Ordinal nature of a 4-level classifying variable to identify positive and negative trends in a continuous variable. While I'm aware of the trend test for 2-level ordinal variable, I've not been able to find the equivalent for a 4-level ordinal variable.
I could treat the 4-level ordinal variable as a continuous one but I'm not sure if this is a valid approach.