A college lecturer said ‘For the course "Biostatistical Methods", the percentage a student gets for the closed-book exam has always been fairly similar to the one they get for the assignment, give or take about 15%. I am a busy person, so I will simply copy the assignment percentage into the column marked ‘exam' on the spreadsheet and not bother to grade the exams at all. It's really fair of me, because students get stressed during the exam anyway and may not perform as well as they should.' Please discuss.