Lecture 11

Question 1

define dummy variable

Answer 1

a numerical variable used in regression analysis to represent subgroups of the sample in your study.

Question 2

what values should be of the dummy varibale?

Answer 2

only binary (values 0 and 1)

Question 3

dummy variables in linear regression?

Answer 3

Any independent variable that is nominal must be coded into a so-called dummy variable, before being entered into a model.