I'm not sure what you mean. Dichotomous variables can be used.
Our tutorial has an example of using gender.
Dear FS experts,
Sorry for my confusion here, but I'm wondering why dichotomous nuisance variables (e.g., gender) can't be used in qdec? I was thinking that if it uses a generalized linear model then it should be ok? I read other posts and understand why discrete factors can't be used with more than 2 levels, but was thinking that dichotomous variables should be different.
NB. we're trying to run a simple two group comparison, but we two dichotomous variables that we want to control for.
Many thanks for your help,Dom
--------------------------------------------------------------------Dom Dwyer, PhDPsychiatry & PsychotherapyLMU Munich
A: Nußbaumstr. 7, Munich, 80336T: +49 (0)89 4400 55880
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