Keirsey Temperament Sorter-II (KTS®-II)

Description

The Keirsey Temperament Sorter-II (KTS®-II) is one of the most widely recognized personality assessment instruments designed to identify individual temperament preferences and patterns of behavior. Developed by David Keirsey, the instrument is grounded in Carl Jung’s theory of psychological types and incorporates the four preference dimensions of the Myers-Briggs Type Indicator (MBTI). Rather than measuring intelligence, abilities, or psychopathology, the KTS®-II identifies stable personality preferences that influence how individuals perceive information, make decisions, communicate, solve problems, and interact with others.

The questionnaire classifies respondents into 16 personality types, which are organized into four primary temperament categories:

  • Artisan
  • Guardian
  • Idealist
  • Rational

Each temperament represents a distinct pattern of interpersonal behavior, communication style, motivation, leadership characteristics, and problem-solving approach. The KTS®-II is widely used to enhance self-awareness, improve interpersonal relationships, and facilitate personal and professional development.

The instrument has extensive applications in personality psychology, career counseling, educational psychology, organizational psychology, human resource management, leadership development, team building, executive coaching, and personal development programs.

Data Analysis and Applications

Data collected using the KTS®-II are analyzed using modern psychometric and statistical methods to identify personality preferences and classify individuals according to Keirsey’s temperament theory.

The questionnaire is based on four bipolar personality dimensions:

  • Extraversion (E) – Introversion (I), describing whether individuals primarily direct their energy toward the external or internal world.
  • Sensing (S) – Intuition (N), evaluating preferred methods of gathering information.
  • Thinking (T) – Feeling (F), assessing preferred decision-making styles.
  • Judging (J) – Perceiving (P), examining preferences for organization, planning, and lifestyle.

The combination of these four preferences produces one of 16 personality types, which are subsequently grouped into the four major temperament categories proposed by Keirsey.

Psychometric evaluation of the KTS®-II typically includes:

  • Internal consistency, assessed using Cronbach’s alpha coefficient.
  • Test–retest reliability, evaluating score stability across repeated administrations.
  • Construct validity, investigated using Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA).
  • Convergent, discriminant, and criterion validity, established through comparisons with other personality measures such as the MBTI, NEO Personality Inventory (NEO-PI-R), and the Big Five Inventory (BFI).

In research settings, KTS®-II data are commonly analyzed using:

  • Descriptive statistics, including means, standard deviations, frequencies, and percentages.
  • Comparative analyses, such as independent-samples t-tests, Analysis of Variance (ANOVA), Mann–Whitney U tests, and Kruskal–Wallis tests, to compare personality profiles across demographic or occupational groups.
  • Correlation analyses, using Pearson and Spearman correlation coefficients to investigate relationships between temperament, leadership, resilience, occupational satisfaction, communication styles, and interpersonal relationships.
  • Multivariate statistical techniques, including linear regression, logistic regression, mediation and moderation analyses, and Structural Equation Modeling (SEM) to examine predictors of behavioral and organizational outcomes.

Purpose

The primary purpose of the Keirsey Temperament Sorter-II (KTS®-II) is to identify individuals’ dominant personality preferences and temperament patterns, thereby promoting greater self-awareness and improving interpersonal understanding.

More specifically, the instrument is designed to:

  • assess personality preferences and behavioral tendencies;
  • facilitate personal insight and self-development;
  • support career counseling and vocational guidance;
  • improve communication and teamwork;
  • enhance leadership development and organizational effectiveness;
  • support educational, psychological, and organizational research on personality and human behavior.

The KTS®-II also assists professionals in understanding individual differences, enabling more effective educational strategies, workplace collaboration, and interpersonal communication.

Scoring

The KTS®-II consists of a series of self-report statements evaluating the four core personality dimensions. Responses are coded according to standardized scoring procedures, and the individual’s personality type is determined by the combination of preferences across the four bipolar scales.

The resulting personality profile classifies each participant into one of 16 personality types, which are grouped into four principal temperament categories:

  • Artisan
  • Guardian
  • Idealist
  • Rational

Unlike traditional psychological scales, the KTS®-II does not produce a single numerical total score. Instead, it generates an individualized personality profile based on the respondent’s dominant preferences across the four personality dimensions.

The KTS®-II has demonstrated satisfactory psychometric properties and is widely recognized as a valuable instrument for understanding personality differences in educational, organizational, counseling, and research settings.

References

Myers, I. B., & Myers, P. B. (1995). Gifts Differing: Understanding Personality Type. Davies-Black Publishing.

Keirsey, D. (1998). Please Understand Me II: Temperament, Character, Intelligence. Prometheus Nemesis Book Company.

Keirsey, D., & Bates, M. (1984). Please Understand Me: Character and Temperament Types. Prometheus Nemesis Book Company.

Keirsey, D. (1998). The Keirsey Temperament Sorter II.