If a mark in a final examination is only one of a number of contributors to a final grade, the examiner may feel that it is not necessary to test every level of objective in that examination. Under these circumstances, the final examination would normally be designed to measure the achievement of higher order objectives such as the ability to analyse problems and to suggest constructive solutions, particularly in science-and mathematics-based disciplines or professions. In the humanities a final examination may focus on students' ability to demonstrate a thorough understanding of the field of study by selecting appropriate references, presenting the student's own interpretation of a situation and arguing for that viewpoint.