a four-sector model for assessing people’s behavioral reactions, first presented in the book by the American psychologist William Marston “Emotions of Normal People” (1928). In modern terminology, these are “Dominance” [D], “Impact” [I], “Constancy” [S], “Conformity” [C], although Marston himself deciphered them differently. Subsequently, on the basis of this model, many questionnaires were created that assess the dominant type of reaction, as well as the personality profile determined by a combination of indicators.
The DISC model and word are not protected by copyright, so there are a large number of alternative techniques. The most authoritative and used in business circles seems to be DiSC Profile, now owned by the Willey holding.
The Open DISC Assessment Test, ODAT was developed within the framework of the OpenPsychometrics project, based on scientific and statistical methods. The study involved about 8 thousand people who know their type according to any of the existing methods. The most indicative elements that statistically stand out in the answers of people of the same type made up a short final questionnaire.