st: A question about ordered probit and ordered logit

["Maoyong Fan" <fan@berkeley.edu>]

Dear Friends,

	I am running some ordered logit and ordered probit model.  However, the results from the regression is like:

                             Robust                                              
 		grades     Coef.   Std. Err.      z    P>z     [95% Conf. Interval]     
                                                                                 
       hs_gpa    1.272978          .        .       .            .           .   
   eop_status   .0191206          .        .       .            .           .    
   verbal_sat   .0003812          .        .       .            .           .    
     math_sat    .0124125          .        .       .            .           .   
       gender    .0414381          .        .       .            .           .   
         dum1     22.4096          .        .       .            .           .   
         dum3    23.21787          .        .       .            .           .   
         dum4     24.6822          .        .       .            .           .   
         dum5    22.17915          .        .       .            .           .   
         dum6    23.39091          .        .       .            .           .   


what's the problem?  What should I do if I still want to run ordered logit and ordered probit on this data set?

Warm regards,

Maoyong Fan 				


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