The
Keirsey Temperament Sorter (
KTS) is a self-assessed
personality questionnaire designed to help people better understand themselves and others. It was first introduced in the book
Please Understand Me. It is one of the most widely used personality assessments in the world, and its user base consists of major employers including
Bank of America,
Allstate, the
U.S. Air Force,
IBM,
7-Eleven,
Safeco,
AT&T, and
Coca-Cola. The KTS is closely associated with the
Myers-Briggs Type Indicator (MBTI); however, there are significant practical and theoretical differences between the two personality questionnaires and their associated different descriptions.