I guess you are referring to this. http://www.myersbriggs.org/ http://www.myersbriggs.org/ This is a valid point. If the version that most companies are using

I guess you are referring to this. http://www.myersbriggs.org/ http://www.myersbriggs.org/ This is a valid point. If the version that most companies are using needs a binary classification, then this is a meaningful criticism of the test. However, note that this is just be a criticism of the test. It says nothing about whether the tests are effective or not, which is what the article tries to prove.