Keirsey Temperament Sorter


The Keirsey Temperament Sorter 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 ; however, there are significant practical and theoretical differences between the two personality questionnaires and their associated different descriptions.

Four temperaments

expanded on the ancient study of temperament by Hippocrates and Plato. In his works, Keirsey used the names suggested by Plato: Artisan, Guardian, Idealist, and Rational. Keirsey divided each of the four temperaments into two categories, each with two types. The resulting 16 types correlate with the 16 personality types described by Briggs and Myers.
Although the descriptions of the individual temperaments and role variants were written as a whole, temperament itself can be understood by comparing it to the rings of a tree:
There is no comparable idea of Myers or Jung that corresponds to this dichotomy, so this is a significant difference between Keirsey's work and that of Myers and Jung.
Each of the four temperaments is subdivided by this distinction for a result of eight roles.
Each of the eight categories can be subdivided by this distinction, for a total of 16 role variants. These 16 role variants correlate but do not correspond to the 16 Myers–Briggs types.

Four interaction roles

In his book Brains and Careers, Keirsey divided the role variants into groupings that he called "four differing roles that people play in face-to-face interaction with one another."
There are two Proactive Enterprising Roles:
There are two Reactive Inquiring Roles:
The roles were implied in the informing/directing factor introduced in Portraits of Temperament. In his 2010 follow-up book, Personology, "Coworkers" is renamed "Collaborators", and "Responders" is renamed "Accomodators"

Temperaments and intelligence types

The following table shows how the four rings relate to one another and to the various temperaments.
TemperamentRoleRole Variant
Concrete
or
Abstract ?
Cooperative
or
Pragmatic?
Informative
or
Directive?
Expressive
or
Attentive?
Observant
Guardian
Logistical
Conservator
Supporting
Provider : Supplying
Observant
Guardian
Logistical
Conservator
Supporting
Protector : Securing
Observant
Guardian
Logistical
Administrator
Regulating
Supervisor : Enforcing
Observant
Guardian
Logistical
Administrator
Regulating
Inspector : Certifying
Observant
Artisan
Tactical
Entertainer
Improvising
Performer : Demonstrating
Observant
Artisan
Tactical
Entertainer
Improvising
Composer : Synthesizing
Observant
Artisan
Tactical
Operator
Expediting
Promoter : Persuading
Observant
Artisan
Tactical
Operator
Expediting
Crafter : Instrumenting
Introspective
Idealist
Diplomatic
Advocate
Mediating
Champion : Motivating
Introspective
Idealist
Diplomatic
Advocate
Mediating
Healer : Conciliating
Introspective
Idealist
Diplomatic
Mentor
Developing
Teacher : Educating
Introspective
Idealist
Diplomatic
Mentor
Developing
Counselor : Guiding
Introspective
Rational
Strategic
Engineer
Constructing
Inventor : Devising
Introspective
Rational
Strategic
Engineer
Constructing
Architect : Designing
Introspective
Rational
Strategic
Coordinator
Arranging
Fieldmarshal : Mobilizing
Introspective
Rational
Strategic
Coordinator
Arranging
Mastermind : Entailing

Historical development

Keirsey became familiar with the work of Ernst Kretschmer and William Sheldon after WWII in the late 1940s. Keirsey developed the Temperament Sorter after being introduced to the MBTI in 1956. Tracing the idea of temperament back to the ancient Greeks, Keirsey developed a modern temperament theory in his books Please Understand Me, Portraits of Temperament, Presidential Temperament, Please Understand Me II, Brains and Careers, and Personology. The table below shows how Myers' and Keirsey's types correspond to other temperament theories or constructs, dating from ancient times to the present day.

Myers–Briggs types versus Keirsey's temperaments

The type descriptions of Isabel Myers differ from the character descriptions of David Keirsey in several important ways:
Myers grouped types according to cognitive function: the ‘thinking type’ grouping for those with dominant thinking; the ‘intuitive type’ grouping for those with dominant intuition; the ‘feeling type’ grouping for those with dominant feeling; and the ‘sensing type’ grouping for those with dominant sensing. Keirsey's temperaments correlate with Myers' combinations of preferences: Guardians with sensing plus judging ; Artisans with sensing plus perceiving ; Idealists with intuition plus feeling ; and Rationals with intuition plus thinking.
Myers paired ESTJs with ENTJs, ISFPs with INFPs, INTPs with ISTPs, and ENFJs with ESFJs because they share the same dominant function attitude. ESTJs and ENTJs are both extraverted thinkers, ISFPs and INFPs are both introverted feelers, INTPs and ISTPs are both introverted thinkers, and ENFJs and ESFJs are both extraverted feelers. Keirsey holds that these same groupings are very different from one another because they are of different temperaments. ESTJs are Guardians whereas ENTJs are Rationals; ISFPs are Artisans whereas INFPs are Idealists; INTPs are Rationals whereas ISTPs are Artisans; and ENFJs are Idealists whereas ESFJs are Guardians.

Empirical validation

In a 2001 peer-reviewed study published in the Journal of Career Assessment, data from the Keirsey Temperament Sorter II online instrument and Myers Briggs Type Indicator for 203 college freshmen were analyzed and compared. Positive correlations appeared between the concurrent MBTI and Keirsey measures of psychological type. The study indicates that there is "little information available to support the validity of the KTS-II."