|Family/Household Reference Person Indicator (RPIP)This variable
identifies the household member used in Census coding as the
basis for identifying the relationships between usual residents
of a household. Familial relationships are defined in terms of
the relationship between the family reference person and all
other family members.| In the 2011 Census, data on the
relationships people have with others in the same dwelling is
mainly derived from question 5 on the Census Household Form,
which asks for each person’s relationship to Person 1 on the
form. Person 1 is the 'reference person' for 94.2% of family
reference persons and 99.0% of non-family reference persons. In
the remaining cases, a more appropriate person on the form is
chosen during clerical coding. For example, an adult is chosen
rather than a child, or in the event of multiple family
households additional reference persons are chosen. For more
detail on how family and non-family households are coded refer
to the following data quality statements