16 Types Personality Test is a free introspective self-report questionnaire designed to indicate differing psychological preferences in how people perceive the world around them and make decisions. This test is based on the theory proposed by Carl Jung, who speculated that humans use four principal psychological functions (sensation, intuition, feeling, thinking), and one of these four functions is dominant for a person most of the time.

The 16 personality types are divided into four categories: Analysts, Diplomats, Sentinels, and Explorers. Learning about our personality type helps us understand why certain areas in life come easily to us, and others are more challenging. It also helps us to communicate more effectively with others, understand their reactions to situations, and know how to communicate with them on a level they best understand. The test is useful for career guidance, managing employees, interpersonal relationships, education, and counseling.