Hi, I have two variables, both have the same values. Exactly the same values.
This was a telephone survey, and some respondents were given an extra, explicit option to choose from, while the other respondents were not. But the answers are all coded exactly the same.
Again, there are two separate variables: one wher ethe respondents were provided with an extra explicit option; the other where the respondents were not. I would like to combine these two different variables into one. Can someone explain how to do that?