1. Student age, year
2. Female students, 1=yes
3. Plans to go to acad. high school after jr. high at baseline survey, 1=yes
4. Plans to go to Voc. high school after jr. high at baseline survey, 1=yes
5. Have not decided where to go after jr. high at baseline survey, 1=yes
6. Z-score of Standardized TIMSS test at baseline survey
7. Mom's years of schooling
8. Dad's years of schooling
9. Mom's health status, 1=good
10. Dad's health status, 1=good
11. Mom ever migrated, 1=yes
12. Dad ever migrated, 1=yes
13. Number of siblings, person
14. Family asset value, 1000 yuan