Understanding Society User Support

Hi,

I'm trying to compute a variable measuring how far a respondent lives from their parents, using pafar and mafar.

I had a couple of questions regarding this:

1. I assume mafar and pafar are shown to respondents regardless of where their parents live, i.e. even if they live in the same household?

2. Regarding when mother and father live together: mafar is distance to mother if alive; respondents are then asked pafar if their parents are not living together. Ergo, mafar applies to both parents if they live together; if not, then it applies only to the mother. Is this right?

3. Both mafar and pafar apply to either biological or step parents (LVRel = 1,2,9,10). Which takes precedence in terms of distance if both biological and step parents are alive? Or is this not specified?

4. Though mafar and pafar can apply to either biological or step parents, parmar (whether parents live together), which determines whether pafar is asked, only applies to biological parents. So, for instance, if a respondent had a biological mother and step father living apart, they wouldn't be asked pafar, which seems wrong to me? Further, if a respondent had a biological mother and father alive though not living together (and no step parents), they would be shown pafar, but if the respondent also had a step parent, they wouldn't be shown pafar, which also seems wrong?

Sorry if I'm misunderstanding anything, and thanks again,