I think I understand what that was about. She received a check from Norview, her high school, and didn't understand why. Her mom thought that maybe she was being reimbursed for her AP tests. AP tests cost about $90 per test (here they are paid for by the students but some schools pay them for the students). I will assume from what posted maybe her high school had a policy that if you got a certain score or above they reimburse you for the test, to encourage you to do well since good scores reflect positively on the school. So she says she didn't think she scored well enough on the tests to get the reimbursement (scores range from 1-5 with 5 being the best).
Even if she had a scholarship, a full scholarship could mean full tuition only and then she had to pay room and board (about $8000/year). That would explain why she was interviewing to be an RA. That would cover her room and board and the scholarship cover her tuition.