Trend Regression Coefficients of Ordinal Predictor
This post has NOT been accepted by the mailing list yet.
I am fitting a regression model with a normally distributed outcome (y)
and an ordinal variable in 4 levels (x) as predictor, along with other variables (a, b), using the command
regress y i.x a b
I get separate coefficients for the levels of the predictor x while the first level is treated as reference. I would like to demonstrate that the coefficients of the ordinal variable levels are trending in a certain direction with the variable itself. Is there a way to demonstrate this?