Hello there,
I'm trying to find the impact of contingencies on an explanatory variable in a probit regression. I've been told that using a t-test to compare the coefficients of the said variable on the different probit results (the standard one and the one with the contingency) is a good way to confirm my hypothesis, but I don't really know how to do that. Can somebody help me out?
PS Do you know other ways to verify this kind of relation?