DISC assessment DISC assessment DISC is a behavior assessment tool based on the DISC theory of psychologist William Moulton Marston, which centers on four different personality traits which are currently Dominance (D), Influence (I), Steadiness (S), and Conscientiousness (C). This theory was then developed into a behavioral assessment tool by industrial psychologist Walter Vernon Clarke. Marston was a lawyer and a psychologist; he also contributed to the first polygraph test, authored self-help books and created the character Wonder Woman. His major contribution to psychology came when he generated the DISC characteristics of emotions and behavior of normal people (at the time, 'normal'
William Moulton Marston Marston had written many articles and books on various psychological topics, but his last six years of writing were devoted to his comics creation. William Moulton Marston died of cancer on May 2, 1947, in Rye, New York, seven days shy of his 54th birthday. After his death, Elizabeth and Olive continued to live together until Olive's death in 1985, aged 81; Elizabeth died in 1993, aged 100. In 1985, Marston was posthumously named as one of the honorees by DC Comics in the company's 50th anniversary publication "Fifty Who Made DC Great". William Moulton Marston's philosophy of diametric opposites