Myers and Briggs were intrigued by Jung's theory of psychological types and recognized its practical potential. During World War II, they began research to create an indicator made to understand individual differences more deeply.
Myers and Briggs believed that by helping individuals understand themselves better, they could guide them in choosing professions that matched their personality types, thereby promoting healthier and more fulfilling lives.
During the 1940s, Myers developed the initial pen-and-paper version of the inventory. The duo then tested the assessment on acquaintances and relatives, refining the instrument extensively over the next twenty years.
The trademarks Myers-Briggs Type Indicator, Myers-Briggs, and MBTI are registered by The Myers & Briggs Foundation in various countries, including the US. Personality Labs is not affiliated with the publishers or rights holders of the MBTI® assessment.