Please note at the outset that I am assuming individuals who hold the various views and perspectives that are outlined below have positive intent (as I do). My experience is that most individuals who are passionate about a point of view are sincere and believe that their insights will benefit everyone, if they could only see the value of their insights. Not so long ago I was invited to talk at a forum at a large public university on the “evidence” for various personality models and how these models inform perspectives on development. One of my companies at the time was certifying professionals in several personality assessments, which were based on different models of personality. As the forum unfolded, my co-panelists unloaded all critical cannons on the MBTI® assessment as an unfounded, unscientific, bad psychological model, and I was asked to defend it. Every single criticism of the MBTI®, using the 1984 Manual, lobbied at me was reasonable and analytically sou...