As an ISTJ, your primary mode of living is focused internally, where you take things in via your five senses in a literal, concrete fashion. Your secondary mode is external, where you deal with things rationally and logically.

ISTJs are quiet and reserved individuals who are interested in security and peaceful living. They have a strongly-felt internal sense of duty, which lends them a serious air and the motivation to follow through on tasks. Organized and methodical in their approach, they can generally succeed at any task which they undertake.

ISTJs are very loyal, faithful, and dependable. They place great importance on honesty and integrity. They are "good citizens" who can be depended on to do the right thing for their families and communities. While they generally take things very seriously, they also usually have an offbeat sense of humor and can be a lot of fun - especially at family or work-related gatherings.

ISTJs tend to believe in laws and traditions, and expect the same from others. They're not comfortable with breaking laws or going against the rules. If they are able to see a good reason for stepping outside of the established mode of doing things, the ISTJ will support that effort. However, ISTJs more often tend to believe that things should be done according to procedures and plans. If an ISTJ has not developed their Intuitive side sufficiently, they may become overly obsessed with structure, and insist on doing everything "by the book".

The ISTJ is extremely dependable on following through with things which he or she has promised. For this reason, they sometimes get more and more work piled on them. Because the ISTJ has such a strong sense of duty, they may have a difficult time saying "no" when they are given more work than they can reasonably handle. For this reason, the ISTJ often works long hours, and may be unwittingly taken advantage of.

The ISTJ will work for long periods of time and put tremendous amounts of energy into doing any task which they see as important to fulfilling a goal. However, they will resist putting energy into things which don't make sense to them, or for which they can't see a practical application. They prefer to work alone, but work well in teams when the situation demands it. They like to be accountable for their actions, and enjoy being in positions of authority. The ISTJ has little use for theory or abstract thinking, unless the practical application is clear.

ISTJs have tremendous respect for facts. They hold a tremendous store of facts within themselves, which they have gathered through their Sensing preference. They may have difficulty understanding a theory or idea which is different from their own perspective. However, if they are shown the importance or relevance of the idea to someone who they respect or care about, the idea becomes a fact, which the ISTJ will

internalize and support. Once the ISTJ supports a cause or idea, he or she will stop at no lengths to ensure that they are doing their duty of giving support where support is needed.

The ISTJ is not naturally in tune with their own feelings and the feelings of others. They may have difficulty picking up on emotional needs immediately, as they are presented. Being perfectionists themselves, they have a tendency to take other people's efforts for granted, like they take their own efforts for granted. They need to remember to pat people on the back once in a while.

ISTJs are likely to be uncomfortable expressing affection and emotion to others. However, their strong sense of duty and the ability to see what needs to be done in any situation usually allows them to overcome their natural reservations, and they are usually quite supporting and caring individuals with the people that they love. Once the ISTJ realizes the emotional needs of those who are close to them, they put forth effort to meet those needs.

The ISTJ is extremely faithful and loyal. Traditional and family-minded, they will put forth great amounts of effort at making their homes and families running smoothly. They are responsible parents, taking their parenting roles seriously. They are usually good and generous providers to their families. They care deeply about those close to them, although they usually are not comfortable with expressing their love. The ISTJ is likely to express their affection through actions, rather than through words.

ISTJs have an excellent ability to take any task and define it, organize it, plan it, and implement it through to completion. They are very hard workers, who do not allow obstacles to get in the way of performing their duties. They do not usually give themselves enough credit for their achievements, seeing their accomplishments simply as the natural fulfillment of their obligations.

ISTJs usually have a great sense of space and function, and artistic appreciation. Their homes are likely to be tastefully furnished and immaculately maintained. They are acutely aware of their senses, and want to be in surroundings which fit their need for structure, order, and beauty.

Under stress, ISTJs may fall into "catastrophe mode", where they see nothing but all of the possibilities of what could go wrong. They will berate themselves for things which they should have done differently, or duties which they failed to perform. They will lose their ability to see things calmly and reasonably, and will depress themselves with their visions of doom.

In general, the ISTJ has a tremendous amount of potential. Capable, logical, reasonable, and effective individuals with a deeply driven desire to promote security and peaceful living, the ISTJ has what it takes to be highly effective at achieving their chosen goals - whatever they may be.

Dominant: Introverted sensing (Si)

Si collects data in the present moment and compares it with past experiences, a process that sometimes evokes the feelings associated with memory, as if the subject were reliving it. Seeking to protect what is familiar, Si draws upon history to form goals and expectations about what will happen in the future.[13] Using Si, ISTJs thrive on deep analysis of their surroundings.[12]

Auxiliary: Extraverted thinking (Te)

Te organizes and schedules ideas and the environment to ensure the efficient, productive pursuit of objectives. Te seeks logical explanations for actions, events, and conclusions, looking for faulty reasoning and lapses in sequence.[14] ISTJs use this function to actively process and evaluate their perceptions.[12]

Tertiary: Introverted feeling (Fi)

Fi filters information based on interpretations of worth, forming judgments according to criteria that are often intangible. Fi constantly balances an internal set of values such as harmony and authenticity. Attuned to subtle distinctions, Fi innately senses what is true and what is false in a situation.[15] Fi allows ISTJs to turn their analysis to themselves and others, to understand their feelings and the causes thereof.[12]

Inferior: Extraverted intuition (Ne)

Ne finds and interprets hidden meanings, using “what if” questions to explore alternatives, allowing multiple possibilities to coexist. This imaginative play weaves together insights and experiences from various sources to form a new whole, which can then become a catalyst to action.[16] While ISTJs are capable of rapid and dogged information processing and number crunching, they often have difficulty with, or simply dismiss, abstract concepts without immediate concrete applications.[12]

The MBTI preferences indicate the differences in people based on the following:[4]

How they focus their attention or get their energy (extraversion or introversion) How they perceive or take in information (sensing or intuition) How they prefer to make decisions (thinking or feeling) How they orient themselves to the external world (judgement or perception)

By using their preference in each of these areas, people develop what Jung and Myers called psychological type. This underlying personality pattern results from the dynamic interaction of

their four preferences, in conjunction with environmental influences and their own individual tendencies. People are likely to develop behaviors, skills, and attitudes based on their particular type. Each personality type has its own potential strengths as well as areas that offer opportunities for growth.

The MBTI tool consists of multiple choice questions that sort respondents on the basis of the four "dichotomies" (pairs of psychological opposites). Sixteen different outcomes are possible, each identified by its own four-letter code, referred to by initial letters. (N is used for iNtuition, since I is used for Introversion). The MBTI is approximately 75% accurate according to its own manual.[5]

I – Introversion preferred to extraversion: ISTJs tend to be quiet and reserved. They generally prefer interacting with a few close friends rather than a wide circle of acquaintances, and they expend energy in social situations (whereas extroverts gain energy).[6]

S – Sensing preferred to intuition: ISTJs tend to be more concrete than abstract. They focus their attention on the details rather than the big picture, and on immediate realities rather than future possibilities.[7]

T – Thinking preferred to feeling: ISTJs tend to value objective criteria above personal preference. When making decisions, they generally give more weight to logic than to social considerations.[8]

J – Judgment preferred to perception: ISTJs tend to plan their activities and make decisions early. They derive a sense of control through predictability.[9]

Sanguine

The sanguine temperament is traditionally associated with air. People with this temperament tend to be lively, sociable, carefree, talkative, and pleasure-seeking. They may be warm-hearted and optimistic. They can make new friends easily, be imaginative and artistic, and often have many ideas.[14][15] They can be flighty and changeable; thus sanguine personalities may struggle with following tasks all the way through and be chronically late or forgetful.[16]

Pedagogically, they can be best reached through awakening their love for a subject and admiration of people.[16]

Phlegmatic

The phlegmatic temperament is traditionally associated with water. People with this temperament may be inward and private, thoughtful, reasonable, calm, patient, caring, and tolerant. They tend to have a rich inner life, seek a quiet, peaceful atmosphere, and be content with themselves. They tend to be steadfast, consistent in their habits, and thus steady and faithful friends.[14][15]

Pedagogically, their interest is often awakened by experiencing others' interest in a subject.[16]

People of this temperament may appear somewhat ponderous or clumsy. Their speech tends to be slow or appear hesitant.[14]

Sanguinis-Plegmatis (campuran pelengkap)

campuran ini kebalikan dari pribadi di atas, jika mereka pribadi yang terorganisasi dan berorientasi kerja maka pribadi ini cenderung untuk berlaku santai dan bersenang-senang. perpaduan porsi ganda humor dengan sifat suka bergaul, menjadikan watak ini sahabat yang paling baik. sifat mereka yang hangat dan santai menarik membuat orang lain suka bersama mereka. sifat plegmatis meredakan keadaan naik turun pada sifat sanguinis. kepribadian sanguinis membuat ceria orang plegmatis. mereka baik dalam pekerjaan pribadi, dalam mejadi orang tua, dan dalam kepemimpinan masyarakat karena mereka memiliki humor, kepribadian memikat, dan kestabilan sifat plegmatis. namun campuran ini memperlihatkan mereka adalah orang yang malas, tanpa keinginan dan arah untuk menghasilkan apa saja yang bisa mereka hindari, serta orang yang sangat boros.