Though it is relatively unknown in the United States, but it has won some market shares in Scandinavia although the original MBTI tool is still the most commonly used.
Kuigi see süsteem on suhteliselt tundmatu Ameerika Ühendriikides, on sel oma turuosa Skandinaavias, kuigi algupärast MBTI meetodit kasutatakse siiski kõige enam.