Essay examinations test not only your knowledge of a subject but also your ability to write about it coherently and professionally.
For a class in nursing, you must write a short essay about the role health-care providers play in dealing with patients who have been victims of domestic abuse.
For an examination in a literature course, you must do a close reading of a sonnet, explicating its argument and poetic images line by line.
For a standardized test, you must read a passage by a critic of globalization and respond to the claim made and evidence presented.
For a psychology exam, you must explore the ethical issues raised by two research articles on brain research and the nature of consciousness.