(0 votes, average: 0.00 out of 5)Log in to rate.Personality Index (PDX) is a consensus-driven platform based on analytical psychology typing methods such as Jungian Cognitive Functions, Myers–Briggs Type Indicators (MBTI), Enneagram, Instinctual Variant, Tritype, Socionics, Big Five Personality Traits (SLOAN), Psychosophy (Attitudinal Psyche), Temperaments, Mind Axes, and the Alignment System.