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I am doing a research for which I will perform a data-analysis in SPSS.

My dependent variable is 'father involvement'. I have four different questions that have measured different forms of 'father involvement'. These questions are all ordinal on a 1-2-3 scale.

I would like to run seperate ordinal models for these different questions. My independent variables include two meanscales (gender role attitudes and relationship satisfaction), continuous variables (income and workhours) and an ordinal variable (education level). Additionally I want to see whether there is an interaction-effect between income and relationship satisfaction and whether gender role attitudes function as a mediator for education level

My problem is as follows: I am having a hard time understanding exactly how to deal with continuous independent variables in a ordinal regression. The outputs are quite chaotic since there are a lot of empty cells, which makes intepreting the estimations hard. I am wondering whether using continuous independent variables is advised, or whether it is better to categorize them.

Any suggestive readings or other forms of advice are very welcome.

Thomas

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    $\begingroup$ Did you accidentally assign your continuous independent variables as a categorical factor rather than a continuous covariate (I'm trying to use SPSS terminology here)? A continuous predictor should just give you one regression coefficient, if you have a lot of them you're treating it like a categorical variable. $\endgroup$ – Penguin_Knight Apr 18 at 20:31
  • $\begingroup$ Thanks for the response. Yes I did do that initially yes, then I realized that I should assign them as covariates. I simply need to do a bit more research to get a decent handle on it. Further tips are welcome ;) $\endgroup$ – Thomas vdk Apr 18 at 20:59

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