A branching question could be "do you have children living at home?" if no, skip to the question about the respondent's

[answerhappygod]

A branching question could be "do you have children living at
home?" if no, skip to the question about the respondent's age, if
yes, ask how many children are living at home and what the ages of
the children living at home are, then go to the question about the
respondent's age.
Branching questions are not a great idea in which of the
following types of interviews?
personal interviews
telephone interviews
mail questionnaires
mall intercept interviews
personal and telephone interviews