The Inkblot Test, developed by Hermann Rorschach in 1921, is a psychological assessment tool used to evaluate a person's personality and emotional functioning. It consists of a series of inkblots, and individuals are asked to describe what they see in each image. The responses are analyzed to gain insights into their thoughts, feelings, and behaviors. This test is based on the idea that people project their own unconscious thoughts and emotions onto ambiguous stimuli. While it is widely used in clinical settings, its reliability and validity have been debated among psychologists, leading to varying opinions on its effectiveness.