How are dummy variables named?
Answers to all questions that allow for multiple responses have dummy variables as final data. E.g. question BR005 (“What do or did you smoke”) has three answer categories: 1.Cigarettes 2. Pipe 3. Cigars or cigarillos The data set contains three dummies: BR005d1, BR005d2 and BR005d3 corresponding to the three categories. A value “1” means that the respondent chose the particular category as answer, and in case of “0” the respondent did not choose the particular category as answer.
