Dear All,
I have a bit concerns about some statistical books which says that the covariate should be a continuous variable. But in practice and also in the assumptions of regression analyses I have never seen that a covariate must be continuous. I have seen many model keeping sex as a covariate, now sex is categorical not a continuous. Then I donâ??t understand why some books define covariate as a continuous variable. Although I believe that covariate is a variable which does have significant relationships with the dependent and independent variables.
I will really appreciate to discuss this further and explain something which I am missing here.
Muhammad Riaz
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