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Re: Using a continuous variable with both negative and positive values and zero in regression

Posted by Maguin, Eugene on Aug 18, 2014; 5:18pm
URL: http://spssx-discussion.165.s1.nabble.com/Using-a-continuous-variable-with-both-negative-and-positive-values-and-zero-in-regression-tp5726993p5726999.html

You must be doing logistic regression since you have a dichotomous dependent variable. The negative numbers are no different from positive numbers. The regression coefficient is the log odds of a one unit change in the predictor.  Nothing is changed because your predictor has some negative values.

Gene Maguin

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of saba.haq
Sent: Monday, August 18, 2014 12:25 PM
To: [hidden email]
Subject: Using a continuous variable with both negative and positive values and zero in regression

Hi,
I am doing regression analysis with dichotomous out come variable but continuous predictor variables. One of the variables I have has negative, positive and zero values like this -2.45, -3.46, 1, 0, 2.45, 3.56,, 4.76......
I need to know if I can use it as continuous variable in regression?? or do I need convert these values. If I need to convert these how do I do that.

But if can use it as continuous variable (which be great) what will be interpretation of the results??? I am really confused. I have never came across such a situation before and have not seen anything on internet or in books. It will be a huge help if someone can help me sort this out.


Thanking in advance.



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