Student ID
-7 = Item legitimate skip/NA
-8 = Unit non-response
-9 = Missing

T1 Student's sex
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
1 = Male
2 = Female

T1 Parent 1: highest level of education
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
0 = No bio/adoptive/step-parent in household
1 = Less than high school
2 = High school diploma or GED
3 = Associate's degree
4 = Bachelor's degree
5 = Master's degree
7 = Ph.D/M.D/Law/other high lvl prof degree

T1 Socio-economic status composite
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
-6 = Component not applicable

T1 School control
1 = Public
2 = Catholic or other private

T1 School locale (urbanicity)
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
1 = City
2 = Suburb
3 = Town
4 = Rural

T1 School geographic region
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
1 = Northeast
2 = Midwest
3 = South
4 = West

T2 Student's sex
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
-6 = Component not applicable
1 = Male
2 = Female

T2 Parent 1: highest level of education
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
-6 = Component not applicable
0 = No bio/adoptive/step-parent in household
1 = Less than high school
2 = High school diploma or GED or alterntive HS credential
3 = Certificate/diploma from school providing occupational training
4 = Associate's degree
5 = Bachelor's degree
6 = Master's degree
7 = Ph.D/M.D/Law/other high lvl prof degree

T2 Parent 1: employment status
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
-6 = Component not applicable
1 = P1 has never worked for pay
2 = P1 not currently working for pay
3 = P1 currently working PT (<35 hrs/wk)
4 = P1 currently working FT (>=35 hrs/wk)

T2 Scale of student's mathematics identity
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
-6 = Component not applicable
-4 = Item not administered: abbreviated interview

Hours spent hanging out with friends on typical schoolday
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
1 = Less than 1 hour
2 = 1 to 2 hours
3 = 2 to 3 hours
4 = 3 to 4 hours
5 = 4 to 5 hours
6 = 5 or more hours

Teenager sees himself/herself as a math person
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
-6 = Component not applicable
1 = Strongly agree
2 = Agree
3 = Disagree
4 = Strongly disagree

Hours spent on math homework/studying in typical schoolweek
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
-6 = Component not applicable
0 = No time
1 = Less than 1/2 hour
2 = 1/2 to 1 hour
3 = 1 to 2 hours
4 = 2 to 3 hours
5 = 4 to 6 hours
6 = 7 to 9 hours
7 = More than 9 hours

Math teacher's highest degree earned
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
3 = Bachelor's degree
4 = Master's degree
5 = Educational Specialist diploma
6 = Ph.D./M.D./law degree/other prof degree

Science teachers in this school set high standards for teaching
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
1 = Strongly agree
2 = Agree
3 = Disagree or strongly disagree

Science teachers in this school have given up on some students
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
1 = Strongly agree
2 = Agree
3 = Disagree
4 = Strongly disagree

Teaching is limited by lack of planning time
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
0 = Not applicable
1 = Not at all
2 = A little
3 = Some
4 = A lot

Years of Mathematics coursework required for hs graduation 2012
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
-6 = Component not applicable
-4 = Item not administered: abbreviated interview
4 = Less than 3 years
5 = 3 to less than 4 years
6 = 4 years

Teachers in this school care only about smart students
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
2 = Strongly agree or agree
3 = Disagree
4 = Strongly disagree

School-arranged mentors for students needing extra help
-9 = Missing
-8 = Unit non-response
-7 = Item legitimate skip/NA
-6 = Component not applicable
-4 = Item not administered: abbreviated interview
0 = No
1 = Yes