Who am I. Personality tests. Psychometric questionnaires designed to measure psychological preferences. 70 questions in simple English to give you a real indication of your personality type in less than 15 minutes. Or the 39 question short test for a quick approximation. You will be one of 16 types: ♠ Extrovert (E) or (I) vert. ♠ Sensing (S) or (N) Intuition.