Ordered logsitic regression

Posted by nina on Sep 15, 2014; 3:35pm
URL: http://spssx-discussion.165.s1.nabble.com/Ordered-logsitic-regression-tp5727258.html

Dear all,

I am a bit afraid that my question is not necessarily completely SPSS-related, but would greatly appreciate any comments/ideas/references regarding the following problem:

In a regression model,  my dependent variable is an attitudinal-item measured on a 4-point scale. Thus far, for my analyses I treated this variable as continouos. Now a reviewer challenges this view and recommends to conduct an ordered logistic regression analyses, e.g. via the PLUM Procedure in SPSS. OK, this seems doable but in my view complicates the analyses and interpretation a bit.

So I wonder what form of bias actually might result from modelling a categorical variable (with e.g. just 4 response options) as metric? Are there any papers available dealing with this topic?

Many thanks !
Nina

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