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All our variables (question asked to students in our questionnaire) given by school are answered by: 1) very important 2) important 3) unimportant 4) vert unimportant

we want to use these variables as independent variables in a logistic regression (binary regression spss).

Do we need to change it into dummies where we chose a reference category (very important/very unimportant). Or can we just use it like this?

I would be very gradeful for some help! Tom

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I don't have a copy of SPSS to hand, but from memory you can go to Analyse > Regression > Binary Logistic. In this dialogue box you can enter your independent variables, then press 'Categorical', which opens a new dialogue. At this point you can specify which SPSS should treat as categorical, and proceed from there.

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