How do you define Projective personality tests?

Projective tests are based on psychoanalytic theory. They have been and they still remain, controversial. Some of the most widely used projective tests are Rorschach Ink Blot Test, the Thematic Apperception Test (TAT), House Tree Person (HTP) and the Rotter’s Incomplete Sentence Blank (RISB). In projective tests, the person is presented with a series of ambiguous stimuli. The known projective test, introduced in 1921 by Hermann Rorschach, a Swiss psychiatrist, is based on the use of inkblots. Projective techniques such as the Rorschach test were originally based on psychodynamic assumptions about the nature of personality and psychopathology. Considerable emphasis was placed on the importance of unconscious motivations conflicts and impulses of which the person is largely unaware.