The Most Reliable Free Personality Test: Uncovering Insights into Your Traits

Choose the test you think is the most reliable!

Author: Gregor Krambs
Jun 16, 2023 10:18 (Updated on Dec 2, 2023 22:31)
Welcome to StrawPoll, where your opinions matter! Dive into our latest exciting ranking, "What is the most reliable free personality test?" and make your vote count. Thousands of users are eager to discover the ultimate tool for self-discovery, and we need your help to decide. From the renowned Myers-Briggs Type Indicator to the lesser-known Enneagram tests, which one will reign supreme? Don't see your favorite personality test on the list? No problem! Feel free to suggest a missing option and make your voice heard. Join the conversation, spark curiosity, and explore the intricate world of personality assessments as we uncover the most reliable and insightful free test available. Cast your vote and stay tuned for the results!

What Is the Most Reliable Free Personality Test?

  1. 1
    Big Five Personality Test
    MissLunaRose12 · CC BY-SA 4.0
    This is one of the most widely used personality tests and is based on the five-factor model of personality. It is considered reliable and valid, and has been extensively researched.
    The Big Five Personality Test is a widely used psychological assessment that measures an individual's personality traits based on five core dimensions.
    • Dimensions: The test measures personality traits across five dimensions: openness, conscientiousness, extraversion, agreeableness, and neuroticism.
    • Openness: Assesses a person's imagination, creativity, and preference for new experiences.
    • Conscientiousness: Measures reliability, industriousness, and how organized and self-disciplined a person is.
    • Extraversion: Evaluates a person's level of sociability, assertiveness, and energy towards social interactions.
    • Agreeableness: Reflects a person's tendency to be cooperative, compassionate, and considerate towards others.
  2. 2
    This test categorizes people into 16 personality types based on four dichotomies. While the MBTI is popular, it has been criticized for low reliability and validity.
    The Myers-Briggs Type Indicator (MBTI) is a widely used self-report inventory that assesses personality based on a set of psychological preferences. It is designed to identify an individual's personality type, which is determined by their preferences in four different dichotomies.
    • Purpose: To assess and categorize an individual's personality type.
    • Structure: Consists of four dichotomies (Extraversion-Introversion, Sensing-Intuition, Thinking-Feeling, and Judging-Perceiving), resulting in a total of sixteen possible personality types.
    • Self-report: Relies on individuals' self-assessment and self-reporting of their preferences.
    • Common Applications: Career counseling, personal development, team building, and relationship assessments.
    • Popularity: One of the most widely used personality assessment tools, with millions of people having taken the test.
    Myers-Briggs Type Indicator (MBTI) in other rankings
  3. 3
    This test is based on the MBTI but uses a different approach to categorize individuals into 16 personality types. It has gained popularity but has not been extensively researched.
    16 Personalities is a widely recognized free online personality test that aims to provide individuals with an in-depth understanding of their unique personality traits and preferences. It is based on the Myers-Briggs Type Indicator (MBTI) and was created to help users gain self-awareness and insights into their strengths, weaknesses, and potential career paths.
    • Test Length: 10-15 minutes
    • Question Format: Multiple-choice
    • Personality Framework: Myers-Briggs Type Indicator (MBTI)
    • Result Categories: 16 distinct personality types
    • Detailed Profiles: Individualized personality profiles with descriptions, strengths, weaknesses, and career recommendations
  4. 4

    HEXACO Personality Inventory

    Ashton, M. C., & Lee, K.
    This test measures six personality dimensions and has been found to be reliable and valid in research studies.
    The HEXACO Personality Inventory is a widely used method for assessing personality traits. It is an alternative to the Big Five personality traits model, incorporating an additional sixth factor. The inventory evaluates individual differences across six dimensions of personality.
    • Number of factors: 6
    • Dimensions: Honesty-Humility, Emotionality, Extraversion, Agreeableness, Conscientiousness, Openness to Experience
    • Question items: The inventory consists of 100 items that assess the six personality dimensions.
    • Scoring: Responses are measured on a Likert-type scale to indicate agreement or disagreement with the statement.
    • Factor structure: The inventory provides scores for each dimension, allowing for a comprehensive profile of an individual's personality.
    HEXACO Personality Inventory in other rankings
  5. 5

    Keirsey Temperament Sorter

    Dr. David Keirsey
    This test categorizes individuals into four temperament types and has gained popularity, but has been criticized for low reliability and validity.
    The Keirsey Temperament Sorter is a popular personality test that categorizes individuals into one of 16 personality types based on their temperament and characteristics. It was created by Dr. David Keirsey, a psychologist and author.
    • Number of personality types: 16
    • Temperament categories: Artisans, Guardians, Rationals, Idealists
    • Based on: Myers-Briggs Type Indicator (MBTI)
    • Focuses on: Behavior, values, and attitudes
    • Assessment format: Self-report questionnaire
    Keirsey Temperament Sorter in other rankings
  6. 6
    This test categorizes individuals into nine personality types based on their motivations and fears. While the Enneagram has gained popularity, it has not been extensively researched.
    The Enneagram is a widely used personality test and system of personality typology that seeks to understand the motivations and underlying fears driving individual behavior. It categorizes individuals into nine distinct personality types, each with its own set of key motivations, fears, desires, strengths, and weaknesses. The Enneagram offers insights into how people perceive the world, cope with emotions, and interact with others.
    • Nine personality types: The Enneagram categorizes individuals into nine main personality types.
    • Key motivations: Each Enneagram type possesses its primary motivations that influence their thoughts, feelings, and actions.
    • Underlying fears: The Enneagram reveals the core fears and insecurities that drive individual behavior and reactions.
    • Desires and strengths: The Enneagram identifies the desires and strengths that individuals possess and seek to develop.
    • Weaknesses and limitations: For each personality type, the Enneagram also highlights their weaknesses and limitations.
  7. 7
    DISC Assessment - This test measures four personality styles - dominance, influence, steadiness, and conscientiousness. While the DISC has gained popularity, it has not been extensively researched.
    The DISC Assessment is a widely-used personality test that measures four main personality styles: Dominance, Influence, Steadiness, and Conscientiousness. It provides insights into how individuals tend to behave, communicate, and interact with others in different situations. The test is designed to help people understand themselves better and improve their relationships, teamwork, and communication skills.
    • Number of Personality Styles: 4
    • Focus: Behavior and Communication Styles
    • Purpose: Self-awareness and Relationship Improvement
    • Format: Questionnaire
    • Administration Time: Approximately 10-15 minutes
  8. 8

    The Color Code

    Dr. Taylor Hartman
    This test categorizes individuals into four personality types based on their primary motivations. While it has gained popularity, it has not been extensively researched.
    The Color Code is a widely recognized and reliable free personality test that aims to provide insights into individuals' motivations, behavior patterns, and core driving forces. It helps people understand themselves and others better by categorizing personality types into four primary color codes: Red, Blue, White, and Yellow.
    • Ease of Use: Simple and user-friendly interface.
    • Validity: Based on extensive research and psychological theories.
    • Comprehensiveness: Covers major aspects of personality traits.
    • Practical Application: Provides insight into communication and interpersonal dynamics.
    • Popularity: Used by millions of individuals worldwide.
  9. 9
    This test categorizes individuals into 16 personality types based on 8 dichotomies. It has gained popularity in Eastern Europe but has not been extensively researched in English-speaking countries.
    Socionics is a theory of personality types and intertype relations based on Carl Jung's typology and Russian psychologist Aushra Augustinavichute's work. It aims to understand and classify human personality and behavior.
    • Intertype Relations: Socionics explores the interactions and relationships between different personality types.
    • 16 Personality Types: Socionics identifies 16 different personality types, which are organized into four main groups: Alpha, Beta, Gamma, and Delta.
    • Information Metabolism: Socionics analyzes how individuals perceive, process, and assimilate information.
    • Sociotype: Socionics uses the term 'sociotype' to refer to specific personality types within the system.
    • Model A: The Model A in Socionics describes the eight cognitive functions and their interactions within an individual's psyche.
  10. 10

    Jungian Typology

    Carl Jung
    This test categorizes individuals into one of eight personality types based on their cognitive functions. While it has gained popularity, it has not been extensively researched.
    Jungian Typology is a psychological model based on the work of Swiss psychiatrist Carl Jung. It aims to understand individual differences in personality by categorizing individuals into distinct psychological types. This model is widely used in the field of personality psychology and provides insights into preferences, behaviors, and motivations of individuals.
    • Four Functions: Jungian Typology distinguishes between four functions: thinking, feeling, sensation, and intuition.
    • Two Attitudes: The model also explores two attitudes: extraversion (outward-oriented) and introversion (inward-oriented).
    • Eight Psychological Types: By combining the functions and attitudes, Jungian Typology defines eight psychological types, such as ISTJ, ENTP, etc.
    • Preference Dichotomies: Jungian Typology considers various preference dichotomies like extraversion vs. introversion, thinking vs. feeling, sensing vs. intuition.
    • No 'Right' or 'Wrong': The model suggests that there are no inherently better or worse types; each type has unique strengths and weaknesses.

Missing your favorite test?


Ranking factors for reliable free personality test

  1. Validity
    Validity refers to whether or not a personality test accurately measures what it claims to measure.
  2. Reliability
    Reliability refers to the consistency of a personality test over time and across different groups of people.
  3. Sample size and diversity
    A larger and more diverse sample size will generally lead to more accurate results.
  4. Scoring and interpretation
    The scoring and interpretation process should be clear and understandable, with results that are easy to interpret.
  5. Psychometric rigor
    The personality test should follow established psychometric principles and be based on established theories and research.
  6. Professionally developed
    Personality tests that have been developed and validated by professionals in the field are generally more reliable than those developed by non-professionals.
  7. Usefulness
    Finally, a reliable personality test should be useful in providing insights into an individual's personality and behavior.

About this ranking

This is a community-based ranking of the most reliable free personality test. We do our best to provide fair voting, but it is not intended to be exhaustive. So if you notice something or test is missing, feel free to help improve the ranking!


  • 164 votes
  • 10 ranked items

Voting Rules

A participant may cast an up or down vote for each test once every 24 hours. The rank of each test is then calculated from the weighted sum of all up and down votes.


More information on most reliable free personality test

Background Information: Personality Tests Personality tests are designed to assess a person's behavior, thoughts, and feelings. These tests are often used by employers, counselors, and individuals to gain insight into their personality traits, strengths, and weaknesses. Personality tests can be a useful tool for self-discovery and career planning, but it's important to choose a reliable test to get accurate results. There are many different types of personality tests available, ranging from free online quizzes to more comprehensive assessments administered by professionals. Some personality tests are based on the theories of psychologists like Carl Jung and Sigmund Freud, while others are developed by researchers and organizations. When choosing a personality test, it's important to consider the reliability and validity of the test. Reliable tests produce consistent results over time, while valid tests accurately measure what they're designed to measure. Free online personality tests may not always be reliable or valid, so it's important to research the test and its developer before taking it. Overall, personality tests can be a useful tool for gaining insight into your personality traits and behaviors. However, it's important to choose a reliable and valid test to get accurate results.

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