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What Does the Small "i" In DiSC® Mean?

One DiSC related question I get on a regular basis is; "Why does DiSC have a small "i"? DISC model bases profiles or tests, assessments, surveys, etc... go by many different names and are published by several different companies. These D.I.S.C. based products go by such names as the DiSC Classic® disc profile, personal profile system, disc test, disc assessment, disc personality profile, disc report, and DISC survey and variations of these, but to name a few.  DISC has been referred to as a test, profile, assessment, survey, report, inventory, behavioral assessment, personality test and much, much more. As you can see at times it is spelled DISC, D.I.S.C., disc and probably the most common way DiSC®.  It is this last version of the profile that has caused many questions and much debate over the years around why there is a small “i” used.  Is it that “influence” is less important, less powerful or less significant than the “D” for “Dominance”, or the “S” for “Steadiness” or “Stability” or the “C” for “Consciousness”, Cautiousness”, “Compliant” or “Compliance”? Well, the truth of the matter is no, that is not the case. There is no deep dark research based reason for the small “i”. And no, certification or advanced training is not required to be a keeper of the secret or the “i”.

Here is the story of how the DISC got its “i”.  Once upon a time, a along, long time ago before Inscape Publishing (the largest publisher of DISC based products and the only publisher of the DiSC profile) became Inscape Publishing, even before it was Carlson Learning Company; back when it was a same company called Performax a funny thing happened. One day this small organization had placed an order for their original printing of the DISC Personal Profile System® and when they got their assessment booklets back from the printer there was a typo. A small little typo. A typo the size of an "i". Yes, that is right, the printer did not capitalize the “I” in DISC.  Now since Inscape—Carlson Learning Company—Performax was capable of utilizing of the best of behavioral styles, I am not speaking of the D, I, S, nor C, but rather the behavioral style of flexible/adaptive, they decided to copyright “DiSC” and make it their own . So that is how some versions of DISC got their small “i”. Now when you see the small “i” version of the DISC profile you know it either was published by Inscape Publishing, one of its ancestors, or it is in violation copyright laws.

So how can this be? How can so many different assessments and tools for personality and behavior types from multiple companies and publishers all claim to be the “DISC”? Well, William Marston, the originator of the DISC model never copyrighted the acronym of his four primary personality behavioral types or temperaments, oops.

Bases on our research all the various models of DISC are based on Marston’s 1928 work.  Some have added to it, some have borrowed from it. So give Marston his credit and some actually by-pass Marston and give Jung credit for the DISC model. However it is true based on our research that Marston was influence by Jung, as he was my many others in his field.

And so that is how the DiSC got its "i".

Please feel free to contact us with any feedback, questions, concerns or thoughts you may have on this topic.

John C Goodman, MSOD, MSW, President-Center for Internal Change, Inc

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