Letter grade for B and A students only
0 = B
1 = A

Frequency of student lecture attendance
1 = Never miss
2 = Almost always attends
3 = Attend most times
5 = Miss most times
6 = Miss almost always
7 = Never attend

1 = Never read
2 = Skim
3 = Quick read
4 = Read all/think
5 = read all/think/relate