Gender of child
0 = Boy
1 = Girl

Mother's education
0 = High School or Less
1 = Some College
2 = Bachelor's Degree
3 = Graduate Degree

Mother's ethnicity
1 = African American
2 = Asian
3 = Latino, Latina
4 = Native American
5 = Pacific Islander
6 = White (non-Latino; non-Hispanic)
7 = Other
8 = Hispanic
9 = Mixed

Do both parents live in same household?
0 = No
1 = Yes