why is sex the categorical variable how does partialling affect models is dummy coding for sex a valid method when sex factor is partialled which of the following is a categorical variable? partialling or regressing out why is sex a categorical variable what is meant by the word coding of the sex variable what is meant by partial coding sex what is the purpose of dummy coding sex why is sex an important categorical variable for model design? what is meant by partialling a variable if there is no sex effect in a model, does this variable need to be regressed in the coding method? why is it important to exclude a sex effect how does partialling affect an individual why is sex an r variable is gender a categorical variable what is partialling a variable sex which variable is included in the regression model for a variable with a fixed effect why does sex get partially indexed how do you regress your sex effect