The primary parent was interviewed to determine family structure (eg, married, biological parents, single parent, adoptive parents); degree
of contact the primary and secondary informants had with the child (eg, daily, episodic); relationship to the child (eg, biological parent, stepparent);
number of children in the home; race (categorical options, including
other, were provided to the parent; this was done to meet federal reporting guidelines and, if
sufficient variability was reported, to investigate race as a moderator
variable in secondary analyses); educational level and occupation
of parental informants; and income level.