INFP-AL (Mediator・Light Confidence) Love & Work Guide

Have you ever felt like you wanted to think more deeply while everyone around you was rushing to conclusions in a meeting?

You might be an INFP-AL (Mediator・Assertive Light).
This refers to people who have “introverted,” “intuitive,” “feeling,” and “perceiving” characteristics while also possessing elements of being “assertive” and “highly ethical.”

Perhaps you sometimes feel misunderstood by those around you.
Don’t you have a strong desire to make the world a better place while possessing rich imagination?
Your characteristic is being able to confidently express your opinions while wanting to live according to your beliefs.

In this article, we will explain in detail the characteristics, strengths and weaknesses, relationships, and career aspects of INFP-AL.
You’re sure to find scenes where you think “this is about me.”

Once again, personality researcher and author of Villain Encyclopedia, Tokiwa (@etokiwa999), will provide the explanation.
※We have developed the HEXACO-JP Personality Assessment! It has more scientific basis than MBTI. Tap below for details.

Overview of HEXACO

What is HEXACO

A new model that allows you to understand your personality more deeply is “HEXACO.”
This is a method of expressing human personality through six elements.
It derives from the six letters H・E・X・A・C・O.
Each letter represents a different aspect of personality.

These six elements are as follows:

• H: Honesty-Humility
• E: Emotionality
• X: eXtraversion
• A: Agreeableness
• C: Conscientiousness
• O: Openness

The characteristic of this model is the addition of “Honesty-Humility,” which was not present in the traditional Big Five.
This makes it possible to analyze your personality in more detail and accurately.
Like a high-resolution camera capturing the inside of your mind, detailed personality analysis is possible.

What is HEXACO? Overview, Genetics, Diagnosis & MBTI Relations

64 Classifications by HEXACO

Your personality is classified into 64 types based on whether each of these 6 elements is high or low. Specifically, it works as follows.

• H: Honesty-Humility
  • High→Light (L: Light)
  • Low→Dark (D: Dark)
• E: Emotionality
  • High→Turbulent (T: Turbulence)
  • Low→Assertive (A: Assertiveness)
• X: eXtraversion
  • High→Extroverted (E: Extrovert)
  • Low→Introverted (I: Introvert)
• A: Agreeableness
  • High→Feeling (F: Feeling)
  • Low→Thinking (T: Thinking)
• C: Conscientiousness
  • High→(J: Judging)
  • Low→(P: Prospecting)
• O: Openness
  • High→Intuitive (N: iNtuitive)
  • Low→Sensing (S: Sensor)

By combining these, your unique personality type becomes clear. Let’s take a detailed look at each type!

What is INFP-A (Mediator・Assertive)?

If you are INFP-A, you are a type with low extraversion (I), high openness (N), high agreeableness (F), low conscientiousness (P), and low neuroticism (A).

• Strong idealism and rich creativity
• Deep empathy and understanding for others
• Valuing inner values above all else
• Flexibility toward change
• Confident independence

You have rich imagination and deep sensitivity, and tend to act based on your own values.
You will find great joy in intuitively understanding others’ emotions and providing support.

In relationships, you tend to seek sincere and meaningful connections rather than superficial ones.
You are open to change and new experiences, and value self-expression above all else.
With high stress tolerance and strong self-efficacy, you can cope with difficult situations without losing your authenticity.

INFP-A (Mediator-Assertive) Detailed Analysis with 10+ Studies

Characteristics of INFP-AL

Characteristic ① “Idealistic with high ethical standards”

Don’t you believe deep in your heart that “there should be a better world”?
People with INFP-AL have strong idealism and unwavering ethical standards.
The desire to make the world a better place is likely the driving force behind your actions.
The characteristics of such INFP-AL are as follows:

• Empathy that feels others’ emotional pain as your own
• Deep compassion and understanding for others
• Strong interest in social justice and sense of responsibility

You cherish your beliefs above all else and have the strength to defend them.
Sometimes you may feel heartache from the gap between ideals and reality.
However, your high ethical standards give hope to those around you.
As an INFP-AL, you have the courage to confidently stick to your beliefs.
Therefore, you are relatively resistant to stress and tend to maintain mental stability easily.
In this way, your idealism and ethical standards become a force for making society better.

Characteristic ② “Creative and values self-expression”

Do you feel like an infinite world spreads out in your mind?
People with INFP-AL have rich imagination like an inner artist.
Your inner world is colorful, and the inspiration that springs from it is inexhaustible.
INFP-AL creativity often blooms in the following forms:

• Writing and poetry spun from deep within the heart
• Music and art works infused with soul
• Theater and dance that express emotions

You likely gain deep satisfaction by giving form to your emotions and thoughts.
You also respect the creativity of others and tend to genuinely honor their originality.
As an INFP-AL, you can confidently present your works to the world.
Rather than fearing criticism, you will welcome constructive opinions as fuel for growth.
This inner confidence becomes the driving force that further elevates your creativity.
High ethical standards are also elements that give deep meaning and value to your works.
In this way, you add unique beauty to the world through creativity and self-expression.

Characteristic ③ “High empathy and compassion for others”

When a friend is sad, don’t you feel as if your own heart aches too?
People with INFP-AL have sensitive antennae that perceive others’ emotions as if they were their own.
You likely delicately detect the emotional movements of those around you and make heartfelt efforts to understand them.
This characteristic shines in the following situations:

• Standing by friends’ worries and becoming their emotional support
• Unable to overlook people in trouble and extending a helping hand
• Feeling pain about social problems and taking action

You are someone who can naturally think about things from others’ perspectives.
Therefore, you sometimes play the role of building bridges of understanding between conflicting people.
High ethical standards are deeply connected with your compassionate heart.
As an INFP-AL, you can confidently empathize with others and provide necessary support.
This inner strength becomes the power that allows you to exercise empathy more effectively.
Being stress-resistant, you can continue supporting people over long periods.
In this way, you become a supportive presence for many people through empathy and compassion.

Strengths and Weaknesses of INFP-AL

Strengths of INFP-AL

Your greatest charm is having both high ethical standards and unwavering confidence simultaneously.
While many people live with uncertainty, you have strong beliefs and the courage to act on them.
This characteristic becomes a light of hope for those around you and serves as the driving force for bringing positive change to society.
The main strengths of INFP-AL include the following:

• Creative thinking power that transcends conventional frameworks
• Deep empathy that connects with people’s hearts
• Strong sense of mission to make the world better

You are a rare person who can live faithfully to your own values.
Therefore, you can maintain your true authenticity without being swayed by external pressure or trends.
Your ability to deeply understand others’ emotions and provide the support they truly need is also your strength.
This ability has immeasurable value in building trustful relationships.
Furthermore, your creativity generates original solutions not only in artistic fields but also in problem-solving situations.
Inner confidence serves as support for maintaining a positive attitude even in difficult situations.
In this way, you are a valuable presence with multifaceted strengths who contributes to society.

Weaknesses of INFP-AL

Doesn’t the height of your ideals sometimes become a burden?
The weaknesses of INFP-AL are actually the flip side of their strengths.
When idealism goes too far, you may feel heartache from the gap with reality.
This tendency can create the following difficulties:

• Blaming yourself excessively in pursuit of perfection
• Difficult to find realistic compromise solutions
• Expecting the same level of perfection from others

In your pursuit of ideals, you sometimes lose flexibility.
Also, while strong confidence is a wonderful trait, it can sometimes appear stubborn to others.
High ethical standards serve as life guidelines, but they can sometimes narrow the room for compromise.
You might get too deeply involved in the emotional world and lose objective perspective.
As a result, you may sometimes perceive constructive criticism from others as personal attacks.
However, these weaknesses are the result of your wonderful strengths sometimes becoming excessive.
In other words, these can be called “misunderstood strengths.”

INFP-AL’s Romantic Relationship Tendencies and Improvement Strategies

INFP-AL’s Romantic Tendencies

Don’t you dream of deep, movie-like love in romance?
INFP-AL people tend to seek ideal romance that connects at the deep soul level rather than superficial relationships.
INFP-AL’s romance displays the following beautiful characteristics:

• Finding the true charm hidden deep in the partner’s heart
• Honest, sincere, and devoted affection without pretense
• Seeking partners who can share life views and values

You are someone who can honestly express the emotions in your heart.
Therefore, you can enjoy deep conversations that connect to the depths of the soul with your partner.
You also have an attitude that respects your partner’s individuality and cherishes their uniqueness.
With your high ethical standards, you are loved as an honest and trustworthy lover.
Furthermore, because you have confidence, you can also make healthy self-assertions.
This makes it possible to build balanced relationships based on mutual respect.
In this way, you are pursuing genuine romance based on deep affection and bonds.

Ideal Partner Personality: 3 Traits for Lasting Love

When Romance Becomes Problematic and Improvement Strategies

Have you ever been disappointed in romance thinking “This wasn’t supposed to happen”?
The biggest challenge INFP-AL faces in romance is the gap between ideals and reality.
In dreaming of perfect relationships, you may sometimes be disappointed by your real partner’s human aspects.
This pattern might create the following troubles:

• Demanding too much perfection from your partner
• Perceiving small flaws as major problems
• Being prone to anxiety about relationship progress

To improve these issues, try the following approaches:

• Accept the reality that “no one is perfect”
• Develop a habit of focusing on your partner’s strengths rather than weaknesses
• Value communication that honestly shares inner feelings

Your high ideals are a beautiful trait, but sometimes you need to relax a little.
Instead of seeking perfection, try enjoying relationships where you watch over and support each other’s growth.
While having confidence is wonderful, humility to listen to your partner’s opinions is also important.
While cherishing high ethical standards as life guidelines, have the courage to compromise sometimes.
It’s important to continue efforts to understand each other by putting yourself in your partner’s position.
By having flexibility and an understanding heart in this way, you can build deeper and more fulfilling relationships.

MBTI & Love: All 16 Types’ Romantic Traits Explained

INFP-AL’s Friendship Tendencies and Improvement Strategies

Friendship Tendencies

Don’t you value friends you can truly connect with rather than the number of friends?
INFP-AL people value friendships where they can understand each other at the deep soul level above all, rather than superficial relationships.
Your friendships have the following warm and beautiful characteristics:

• Cherishing a small number of friends you can trust rather than broad, shallow relationships
• Trying to understand the true feelings hidden deep in others’ hearts
• Honest attitude that never betrays promises or trust

You are someone who can feel your friends’ troubles and joys as if they were your own.
Therefore, you are loved by many people as a trustworthy confidant they can rely on in times of trouble.
You tend to choose friends whose values align with yours, building relationships bound by deep bonds.
With your high ethical standards, you maintain honesty and sincerity in friendships as well.
Because you have confidence, you can also honestly convey your true feelings.
This allows you to nurture healthy, deep friendships where you can share each other’s true thoughts.
In this way, you carefully nurture beautiful friendships based on true understanding and trust.

How Personality Type Shapes Friendship Quality & Formation

When Friendships Become Problematic and Improvement Strategies

Have you ever felt puzzled by a friend’s actions, wondering “Why would they do such a thing?”
The problem INFP-AL faces in friendships is that their idealism can sometimes be too harsh.
They may hold their friends to the same high expectations they have for themselves.
This pattern may create the following challenges:

• Being too critical of friends’ human flaws
• Tending to distance themselves from people with different values
• Having a narrow circle of friends and missing opportunities to meet new people

To improve these issues, try adopting the following mindset:

• Enjoy the fact that everyone has different ways of thinking
• Maintain an attitude of learning from opinions different from your own
• Have the courage to open your heart to new encounters

Instead of seeking perfect friends, try discovering the beauty of accepting each other’s individuality.
Interacting with people who have different values from yours should enrich your world with more vibrant colors.
While having confidence is wonderful, it’s also important to have the flexibility to open your heart to friends’ opinions.
While maintaining high ethical standards, sometimes have the patience to accept others with a tolerant heart.
By embarking on adventures to make new friends, the possibilities of human relationships will greatly expand.
In this way, by acquiring new weapons of tolerance and flexibility, you will be able to cultivate richer friendships.

MBTI & Friendship: 16 Types’ Tendencies & Tips

INFP-AL Parenting Tendencies and Improvement Strategies

Parenting Tendencies

Do you find yourself genuinely moved by your child’s small creative activities?
INFP-AL people nurture their children’s individuality like precious flowers and provide parenting that wholeheartedly supports their creativity.
They are sensitive to changes in their children’s emotions and have an attitude of accompanying them with deep love.
INFP-AL parenting has the following warm characteristics:

• Wholeheartedly supporting children’s free and rich expression
• Teaching compassion and righteousness through their own example
• Discovering and nurturing children’s hidden interests and talents

You value dialogue with your children above all else and try to listen to their small inner voices.
You highly value children’s imagination and creativity and find joy in nurturing them.
You try to convey your high ethical standards to your children not through force but with love.
Because you approach parenting with confidence, you can maintain a consistently loving attitude.
Therefore, children can discover their true selves and grow in a sense of security.
You are a parent who respects your child’s individuality while providing appropriate guidance when needed.
In this way, you practice parenting that values the rich growth of your child’s heart above all else.

Ideal Parent Personality Traits: What 30 Studies Reveal

When Parenting Becomes Problematic and Improvement Strategies

Are you being too hard on yourself, thinking “I want to be a better parent”?
The biggest challenge INFP-AL faces in parenting is balancing ideals with reality.
In their desire to be perfect parents, they may become too strict with both themselves and their children.
This tendency can create the following difficulties:

• Expecting the same level of perfection from children as from themselves
• Over-protecting children due to fear of failure
• Struggling to set realistic rules and discipline

To improve these challenges, try adopting the following mindset:

• Realistically adjust expectations for yourself and your children
• View children’s failures as valuable steps toward growth
• Incorporate consistent rules and discipline along with love

Instead of seeking perfection, try enjoying the process of growing together with your child.
It’s important to balance valuing your child’s individuality while helping them develop the skills to live in society.
While having confidence is wonderful, sometimes listen to the opinions of other parents and experts.
High ethical standards are a wonderful gift to children, but flexible responses according to their age are also necessary.
It’s important to focus on appropriate guidance that matches your child’s developmental stage.
In this way, by incorporating realistic perspectives, you can achieve richer and warmer parenting.

MBTI & Parenting: All 16 Types’ Strengths & Pitfalls

INFP-AL Career Tendencies and Improvement Strategies

Career Tendencies

Have you ever wondered “Does this work really have meaning?”
INFP-AL people genuinely seek careers that can simultaneously achieve self-expression and social contribution, rather than jobs that are solely for making money.
When you encounter work that aligns with your values and beliefs, you will feel deep fulfillment and satisfaction.
INFP-AL careers have the following characteristics:

• Aspiration for careers where you can fully express your creativity
• Strong attraction to work that helps people and brings them joy
• Quest for environments where you can realize your ideals and beliefs

Your talents tend to shine particularly bright in fields such as arts, writing, and counseling.
The desire to make the world a better place through your work serves as the driving force behind your actions.
With your high ethical standards, you naturally tend to choose socially valuable work.
Being confident, you’re also skilled at working independently at your own pace.
You build your career with a long-term vision rather than focusing on immediate gains.
INFP-AL is someone who has the courage to walk their own path without being swayed by others.
In this way, you pursue a career that balances two important elements: self-realization and social contribution.

Which Personality Traits Predict Career Success? 5 Key Findings

Career Problems and Improvement Strategies

Have you ever felt discouraged thinking “Maybe the ideal workplace doesn’t exist”?
The biggest challenge INFP-AL faces in their career is the gap between ideals and reality.
You may sometimes feel dissatisfied with your current situation due to dreaming of the perfect work environment.
This tendency might create the following difficulties:

• Difficulty making realistic compromises due to overemphasis on ideals
• Being unable to make decisions due to overthinking career choices
• Difficulty adapting to organizational rules and hierarchies

To improve these challenges, try the following approaches:

• Break down big ideals into small, concrete goals to work on
• Have the courage to gain diverse experiences without fearing failure
• Develop skills to collaborate with others and achieve results

While continuing to pursue ideals is wonderful, realistic step-by-step progress is equally important.
Rather than seeking perfection, it’s crucial to value small successful experiences while moving forward.
While confidence is a great strength, also use constructive feedback from others as fuel for growth.
While maintaining high ethical standards as a life guide, sometimes realistic compromises are necessary decisions.
It’s also important to find your own role within an organization and make efforts to foster teamwork.
By maintaining ideals while developing flexibility and realism, you can build a more fulfilling career.

MBTI & Career: Best Jobs for All 16 Personality Types

INFP-AL Work Tendencies and Improvement Strategies

Work Tendencies

Do you find yourself thinking “Isn’t there a more creative approach?” during meetings?
INFP-AL individuals genuinely seek environments where they can express their unique ideas and creativity rather than conventional work.
When working on tasks that align with your values, you demonstrate remarkable concentration and passion.
INFP-AL’s work style has the following attractive characteristics:

• Generate original ideas that no one else would think of
• Proceed collaboratively while being considerate of colleagues’ emotions and situations
• Continue working persistently toward long-term goals without giving up

You possess creative problem-solving abilities and can come up with original ideas that others wouldn’t think of.
You sensitively perceive team members’ emotions and contribute to creating a comfortable working atmosphere for everyone.
With your high ethical standards, you earn trust from those around you through fair and honest work.
Being confident, you can boldly express your opinions and ideas.
You prefer working at your own pace until you’re satisfied rather than being rushed.
You strongly desire to grow personally through work while simultaneously contributing to society.
In this way, you are a valuable worker who combines originality with compassion for others.

5 Personality Traits of High Performers: 550K Study

Work Problems and Improvement Strategies

Have you experienced panic when deadlines approach, thinking “It’s still not perfect”?
The main challenge INFP-AL faces at work is when idealism sometimes conflicts with realistic constraints.
You may feel uncomfortable with deadlines and pressure due to seeking perfect results.
This pattern might create the following difficulties:

• Getting too focused on details and losing sight of overall progress
• Taking criticism or negative opinions more seriously than necessary
• Struggling with routine work and administrative tasks

To overcome these challenges, try the following approaches:

• Learn schedule management techniques
• View constructive criticism as valuable opportunities for self-improvement
• Actively acquire practical skills as an investment in your future

Perfectionism is a wonderful trait, but sometimes flexibility in thinking “even 80% completion has sufficient value” is also necessary.
A sense of balance is required that considers realistic time and resource constraints while pursuing ideals.
Having confidence is important, but humility to learn from others’ opinions is equally valuable.
While maintaining high ethical standards, the courage to find practical compromises is sometimes necessary.
As a team member, please discover the joy of achieving results while cooperating with others.
In this way, by balancing ideals with reality, you can lead a more fulfilling work life.

MBTI & Work: All 16 Types’ Strengths, Pitfalls & Fixes

Compatible Types with INFP-AL

Compatible types, people with N included

Haven’t you ever intuitively felt “I could have deep conversations with this person” about someone?
As an INFP-AL, you tend to build particularly deep bonds with people of intuitive (N) personality types.
You will be able to connect at a soul level with people who have the following characteristics:

• People who can paint new worlds together with rich imagination
• People who genuinely enjoy deep dialogue that isn’t superficial
• Adventurous people who want to explore the sea of possibilities together

For example, ENFJ (Educator type) people will understand your delicate sensitivity and provide warm support.
INTJ (Architect type) people will think together with you about strategies to turn your creative ideas into reality.
These types of people will genuinely respect your creativity and idealism as “wonderful individuality.”
They will also show deep empathy for the high ethical standards you value.
The confidence you possess makes relationships with these types more solid and trustworthy.
In this way, you and intuitive types can build beautiful bonds of deep mutual understanding.

Do Friends Share Personality Traits? 5 Key Findings

Compatible types, people with L included

Have you ever met someone you truly felt “this person is trustworthy” about?
As an INFP-AL, you also show wonderful compatibility with people who have high ethical standards (L).
You will be able to resonate deeply in values with people who have the following characteristics:

• Honest and trustworthy people whose words and actions are consistent
• People who have pure desires to make the world a better place
• Kind-hearted people who show compassion for others through their actions

For example, ISFJ (Protector type) people will deeply understand your sensitivity and provide stable emotional support.
ENFP (Adventurer type) people will stimulate your creativity and explore new possibilities together with excitement.
These types of people will show genuine empathy for the high ethical standards you value.
They will also respect your idealistic side as “proof of a beautiful soul.”
The confidence you possess makes relationships with these types deeper and more meaningful.
In this way, you and people with high ethical standards can build trusting relationships based on shared values.

MBTI Compatibility: Best Matches for All 16 Types

INFP-AL Summary

Perhaps while reading this article, you felt “this is exactly about me”?
As an INFP-AL, you are a wonderful personality type that is idealistic with high ethical standards while being filled with confidence.
You possess rich imagination and deep empathy for others – qualities that are precious to this world.
Let’s review the main characteristics of INFP-AL once more:

• Strong idealism wanting to make the world better and unwavering ethical standards
• Rich imagination and self-expression that doesn’t conform to frameworks
• Deep empathy that resonates with people’s hearts and warm compassion

You walk through life following the solid compass of your own values, wishing to bring beautiful change to the world.
Your soul shines in creative and meaningful work, such as in artistic fields or professions that support people.
Sometimes you may feel pain in your heart from the gap between ideals and reality.
However, the inner strength of confidence you possess becomes the power to face any difficulty.
You can build deep human relationships and are loved as someone trusted by many people.
Your high ethical standards are like a beacon of hope for those around you.
In this way, as an INFP-AL, you are an irreplaceable presence in this world with your unique perspective and strong convictions.

FAQや注意点

HAXACOの結果と、16personalities（通称MBTI診断）やMBTI（本家）と結果が変わる

1. 性格は遺伝と環境の影響を受けるため、環境が変われば回答も変わります（例、疲れてると情動性が変化するなど）。遺伝について詳しくはこちら。
2. 年齢次第で回答のブレがあります。詳しくはこちら。
3. タイプ分類は各数値が3以上、3未満で行っているため、3に近い値だと、質問の聞き方やその時の環境次第で結果が変わりやすくなります。タイプよりも数値を見てください。
4. MBTI（本家）や16personalities（通称MBTI診断）は質問設計の段階でどの程度統計的な処理をしているか論文が見当たらないため不明確です。一方で、ビッグファイブやHEXACOはそういった論文が簡単に見つかりますし、今回のHEXACO-JP診断は論文ベースです。
5. MBTIや16personalitiesは普段の行動（学力・年収など）や、脳・遺伝などとの比較した研究論文があまり多くない一方で、ビッグファイブやHEXACOは数多く存在します。
6. そもそもHEXACOはビッグファイブの要素の変形なので似て非なるものです。HEXACOの正直・謙虚さは、ビッグファイブの協調性と神経症傾向から抽出されています。下記「補足」参考。

その他にもご質問があれば運営者のトキワ（@etokiwa999）までご連絡ください。

性格診断の結果はあくまで人生の「ヒント」まで

先にも書きましたが、性格は遺伝と環境の影響を受けます。遺伝の影響で、ブレ幅は一定ですが、環境次第である程度答えがブレます。

またビッグファイブやHEXACOの研究論文では学力や年収などと相関分析をしていますが、自然科学の実験ほど大きな相関係数ではありません。相関係数は最小-1、最大1ですが、だいたい-0.4～0.4ほどが多いです。もちろん高いものもあります。0.8や0.9ではなく、それに比べたら低いです。

ただそれでも様々な研究はありますので、「占い以上、自然科学未満」と思ってください。心理学や占いを100％否定しているわけではありません。

補足

16personalities（通称MBTI診断）の概要

16personalities（16タイプ性格診断）は、MBTI（Myers-Briggs Type Indicator）とビッグファイブをベースにして作られています。

厳密には16personalitiesとMBTIは別物なのです。

MBTIは、ユングの心理学的類型論を基に開発された性格診断ツールです。

16personalitiesはMBTIの4つの指標（E外向-I内向、S感覚-N直観、T思考-F感情、J判断-P知覚）を採用しつつ、アイデンティティ（AとT）という指標の追加、独自の質問項目・評価基準を設けています。

この性格診断の良いところとしては、韓国アイドルが広めたり、恋愛マッチングアプリでも使われたりするなど、とても有名で、回答数がとても多いことにあります。それを利用して分析して論文として公開すれば信頼性は高いかもしれません。

ただし、悪いところとしては、科学的な裏付けが弱いところがあります。査読付き論文の数が少ない、統計処理の方法が不明確、性格と学力・収入・脳機能・遺伝的要因などとの関連性について十分な根拠が提示されていない、などが理由です。

16personalitiesとは？科学的根拠やMBTIとの違いを解説

MBTI（本家）の概要

MBTIは性格を16タイプに分類する心理学の理論です。

そもそもMBTIとは、マイヤーズ・ブリッグス・タイプ・インジケーター（Myers-Briggs Type Indicator）の略称です。

MBTIでは、以下の4つの指標を組み合わせて性格を16タイプに分類します。

• 外向性（Extraversion）か内向性（Introversion）
• 感覚（Sensing）か直観（iNtuition）
• 思考（Thinking）か感情（Feeling）
• 判断（Judging）か知覚（Perceiving）

つまり、MBTIでは自分の性格傾向を「ISTJ」や「ENFP」などの4文字で表現するのです。

16personalitiesよりは論文は存在しますが、ビッグファイブやHEXACOほど頑健な研究結果が出ているわけではありません。

MBTIとは？16タイプ性格紹介(恋愛や仕事)・科学的根拠を解説

ビッグファイブの概要

性格心理学において最も有力な特性理論の一つが「ビッグファイブ（Big Five）」です。

ビッグファイブは、開放性、誠実性、外向性、協調性、神経症傾向の5つの特性を測定します。

また、16personalitiesやMBTIはタイプ分類（例、外向的か内向的かのどちらか）を用いるのに対して、ビッグファイブが特性を連続的な数値で評価する（例、外向性3.5）点も大きな違いです。

さらに、古くから研究されており、論文数も多く、学力や所得、脳や遺伝など、他の分野でも多くの研究が行われています。ビッグファイブの方が比較的、科学的な裏付けが強いと言えます。

ビッグファイブ(Big Five)診断とは？概要・遺伝・MBTIとの関連

MBTI・ビッグファイブ・HEXACOの相関関係

MBTIの4指標とビッグファイブの5因子には相関関係があります。

この相関を示した代表的な研究に、「The relationship between the revised NEO-Personality Inventory and the Myers-Briggs Type Indicator」という論文があります。

また、MBTI（本家）とビッグファイブを参考にして作られた16personalities（通称MBTI診断）では、ビッグファイブの神経症傾向が「アイデンティティ」と呼ばれており、自信（Assertive）か、慎重（Turbulent）かで分類されています。

これらの関係をまとめたのが以下の図です。

一番右には、比較的新しい性格診断である「HEXACO（ヘキサコ）」があります。ビッグファイブに1つ指標「正直・謙虚さ」を加えて改良され、ダーク特性（倫理観）が分かるようになりました。

今回のHEXACO-JP性格診断では16personalitiesの5文字に加えて、ダークD/ライトLを付けてより詳細に分析できるようにしています。