test of logistic regression

Feb 2013
Hello guys!

I need your advice. I have done a logistic regression to estimate a probability of impaiment occurs or not. My indep.variables were different factors that can inflduence dep.variable. The data is taken from the stock exchange so it is not normally distributed.

I got results from the whole model and then i made 5 different versions of that where each time i took out variables with a least signif.level and did analysis again.

I used stata

I want to do an extra test to check whether it is right or not. And I want to test a hypotheisis that some of this variables do influence dep.variable.I am not that good at statistics but if you advise me a test I would be very thankfull!
Maybe a lrtest in stata?