What is Step II ?
"MBTI Step II is the result of many years of research and observation that began with Isabel Myers' development of the MBTI personality inventory in the 1940s. The basic versions of the Indicator (Form M and the earlier Form G) yield type descriptions distinguishing the sixteen types from one another but offer relatively few clues as to how people of the same type may differ. In adding items that were not scored for four-letter type, Myers' intent was to enable exploration and identification of individuality within each of the sixteen types. She was in the process of developing this aspect of her work more fully at the time of her death in 1980."
Excerpted from MBTI® Step II Manual: Exploring the Next
Level of Type Within the Myers-Briggs Type Indicator® Form Q