A multiple-choice question (MCQ) is composed of two parts: a stem that identifies the question or problem, and a set of alternatives or possible answers that contain a key that is the best answer to the question, and a number of distractors that are plausible but incorrect answers to the question. Students respond to MCQs by indicating the alternative that they believe best answers or completes the stem. There are many advantages to using MCQs for assessment. One key advantage is that the questions are easy to mark and can even be scored by a computer, which makes them an attractive assessment approach for large classes. Well designed MCQs allow testing for a wide breadth of content and objectives and provide an objective measurement of student ability.