DISC personality test
A DISC personality test describes four personality types: D, I, S and C. Variations of this test are used by different companies, usually for employment needs and team-building inner events. However, the variations you can find on the expanses of the network are rooted in the William Marston book published in 1928. In The Emotions of Normal People is the theory that people show emotions in one of four ways.
Author of the test:
Testometrika Team