Logistic regression c;assification tables

Posted by Mary-33 on Apr 24, 2007; 3:08pm
URL: http://spssx-discussion.165.s1.nabble.com/Logistic-regression-c-assification-tables-tp1075277.html

Hi
I am doing logistic regression and have noticed in my SPSS output that my
classification tables for Step 0 and Step 1 are exactly the same. I am
wondering if anyone has had experience of this and if so what does it mean
for my findings. Perhaps there is something I am doing incoreectly and can
correct for? I recently read somewhere that I can change the cut off to
reflect the prevalence of my predicted outcome in my sample, but it was not
from a credible source.
Many thanks in advance,
Mary