# ordered logit-difference-in-difference

I ran an ordered logit difference-in-difference estimation and got stuck in terms of interpretation. The dependent variable takes on values 1 2 and 3 and I am trying to obtain coefficients for the variables for each of the three categories as I see in papers but I am not sure how to go about it.

• Please provide a specific simplified example of your desired result. – Frank Harrell Aug 14 '14 at 14:36
• say I am trying to estimate the effect of a policy on marital status-single, married and divorced. – user54087 Aug 14 '14 at 15:01
• That sounds like a standard 2 degree of freedom test comparing 3 groups, which can be done by removing marital status from the model or by using a 2 d.f. contrast to get a Wald $\chi^2$ statistic. A double difference is not implied by the example question you provided. – Frank Harrell Aug 14 '14 at 15:05
• when I run the ordered logit, I get treatment effect for the dependent variable as a whole, but i am trying to get the treatment effect for each of the categories. – user54087 Aug 14 '14 at 15:07
• Get those from the coefficients (which represent difference from the reference cell in log odds scale) or by taking differences in coefficients to get other comparisons. – Frank Harrell Aug 14 '14 at 16:05