Objective tests are tests where the scoring does not vary between examiners or over time. The answers are either correct or incorrect, with no partial credit. There are different types of objective test questions including recall, recognition, and context dependent. Objective tests have several merits such as allowing for extensive sampling of topics, objective scoring, saving time, and eliminating irrelevant factors from affecting scores. However, they also have limitations such as not being able to evaluate all objectives and the possibility of guessing answers correctly. The validity and reliability of objective tests can be improved by avoiding difficult words and clues to answers in questions.