It’s a common misconception that DISC is the intellectual property of only one company. DISC is the byproduct of psychologist Moulton Marston’s research, and his book, Emotions of Normal People. In the decades that have followed, Marston’s research has spawned a number of behavioral assessments. DISC is what is commonly referred to as “open-source research.” This means that anyone can produce a questionnaire with report, and call it a DISC assessment – whether it’s been scientifically validated or not. Assessments 24×7 is one of the world’s few “source providers” of DISC that has been validated by an independent third party for Construct Validity, Reliability, and Disparate Impact.