DISC is a behavior assessment tool based on psychologist William Marston 1928 book, Emotions of Normal People;  which centers on four different behavioral styles which are:

• Dominance (D)

• Influence (I)

• Steadiness (S) and

• Conscientious (C)

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Marton's theory was then developed into a behavioral assessment tool by industrial psychologist Walter Clarke.

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People possess traits from all four styles to varying degrees but they will display a dominant style. There is no "best" behavioral style. Each style has its own unique needs and wants, strengths and weaknesses. Much of a style's effectiveness in a particular situation depend on the person's ability to apply his strength flexibly and compensate for his weaknesses in that particular situation.

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If you wish to wish to have a deeper insight in the the history of DISC (5 mins only). Please click on the document below.

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