For all programmes each course, with the exception of the Dissertation, is assessed by a written examination and by the submission of two assignments of 2,500 words each. Students cannot sit the written examination for a course unless they have completed all the compulsory assignments. The grade awarded for the course is based on the mark obtained in the written examination and on the combined mark for the assignments on the course. The ratio of written examination to coursework is 70:30. Examinations take place at the end of every semester/session at the campuses of the University of Nigeria.