RE: LOGIT - Logit Transformed Responses CALCULATION

Posted by ruegdeg on Nov 14, 2011; 9:15am
URL: http://spssx-discussion.165.s1.nabble.com/LOGIT-Logit-Transformed-Responses-CALCULATION-tp4983976p4990189.html

Dear Max, Bruce, all,

thanks for all replies.

I didnt, post the data because i throught that its not important. I know that some 2,3 order or other calculation will be necessary, but this is exactly the point for detection.
But I was wondering about the calculation. For example in the picture the value 0.5 of VAR0003 has an logit value  something below -3.5. But how is that calculated?? If i assume that logit is equal to ln(p/(1-p)) then for the value 0.5 based on constant and beta value the logit should be -2.48+(-0.388)*0.5 and that is -2.67 and not -3.5. any suggestions?