Only for persons younger than 18:

MF1. How many nights a week do you spend in the household of your father or mother?

This question has two objectives. On one side it seeks to determine which of the criteria of inclusion in the household of the other progenitor when there is a double residency, whose importance is growing given the rise of divorce and separation. For example, a girl who spends four days a week in her mother's house and three in her father's house, the days corresponding to the reference week will be noted.

On the other side, the question permits us to study the intensity of the contact between parents and children in the context of the increasing spousal separations.

Procedure: This question is only asked to those members of the household who are younger than 18 and whose kinship relationship with the head of the household is the following: son only of the head ("4") / son only of the spouse ("5") / grandson ("11") / other relative ("12") / other non-relative ("13").

If the person fits with the conditions above, proceed to ask the question. If the person can respond affirmatively, note the number of nights a week.

It can happen that the person declares that the son or daughter stays in the father or mother's household every fifteen days, once a month, or sporadically, in this case mark "0" days.

If the person who is responding signals that the parent not living with the child died, if there is contact but the child doesn't spend the night in the house of the non-cohabitating parent, if he lost contact with mother or father, if the mother or father lives in another department (and the child doesn't spend the night at least once a week in one of their houses), or if the mother or father lives in another country, proceed to mark the response in the corresponding category.

In the particular case following the questions 32 and 33, it is determined that both parents are in the household, don't ask the question.