Rorschach test was developed by the Swiss psychiatrist Hermann Rorschach in the 1920s, consists of a series of 10 cards, each displaying a rather complex inkblot. Some of the blots are coloured and some are in black and white. The subject is instructed to look at the inkblots one at a time and report everything seen on the end-everything the inkblot could look like or resemble.

After the subject has finished the 10 cards, the examiner usually goes back over each response, asking the subject to elaborate some responses and to tell what features of the blot gave a particular impression.