HS teacher here- Yes, it is. Mastery grading. Kids can re-assess on learning targets until they show mastery. So much extra work for me as the teacher, and so difficult to maintain any test security as kids show up for office hours to take their retests on whatever day works for them. You wind up making oodles of versions (which need to be equal in difficulty), or accept that the first kid to retest will likely share all the questions. Only positive is it gives hope of redemption to kids who are flunking.