A century ago, the military asked the American Psychological Association to develop a test capable of identifying soldiers susceptible to shell shock. Rorschach inkblots then came on the scene, followed by dozens of personality assessments. The best known of these tests was the Myers-Briggs Type Indicator (MBTI), which classifies personalities as Extrovert-Introvert, Intuitive-Sensing, Thinking-Feeling, and […]