To start with, father-only households are simply ignored. The premise of the survey is that we only talk to women so this family-type is simply wished out of existence. At least the combination of father and stepmother is considered. There, after all, we find a woman in the house who we can talk to. Worse than this, the survey makes no distinction whatever between different types of parents, fathers vs. mothers or natural parents vs. step-parents.
All questions simply refer to parents.
Note that the possibility of violence towards the father is specifically excluded. This amazing fact is supplied without comment. The parents of women are more violent than those of men. This despite the fact that the survey also finds that boys are more likely to be victims of familial violence than girls. M r. Par tner the next time around to find out why this might be.