player_id
1: not at all, 7: completely
1: female, 0: male
Age
1: AfAm, 2: AmInd, 3: Asian, 4: Cauc, 5: Hisp, 6: PacIsl, 0: Oth / missing
1: HS, 2:     Some Col, 4: Bach, 5: Mast, 6: Doct / Prof, 0: Oth / missing
1: no, 2: FT, 3: PT
1: English is a second language