Objective tests are psychological tests that measure an inividual's characteristics in a way that is independent of rater bias or the individual's own beliefs. Objective tests are often contrasted with subjective tests, which are sensitive to rater or examinee beliefs. They can also be contrasted with projective tests which are based on Freudian Psychology (Psychoanalysis), and seek to expose the unconscious perceptions of people. Objective tests tend to be more reliable and valid than projective or subjective tests.