Save the svylogitgof.ado program to your C:\ado\plus\s directory.

Use: Directly after estimating a logitic regression model using data from a 
complex sample survey, you may assess goodness-of-fit globally by issuing the command:

svylogitgof

Please reference the following work when citing the resulting goodness-of-fit estimate

Kellie J. Archer (2001) "Goodness-of-fit tests for logisitic regression models developed 
using data collected from a complex sampling design" unpublished Ph.D. dissertation, The
Ohio State University, Columbus, OH.