Overview

An introduction to the ISTJ personality type, AKA the Inspector, according to the theory created by Isabel Briggs Myers.

ISTJ in a Nutshell

ISTJs are responsible organizers, driven to create and enforce order within systems and institutions. They are neat and orderly, inside and out, and tend to have a procedure for everything they do. Reliable and dutiful, ISTJs want to uphold tradition and follow regulations.

ISTJs are steady, productive contributors. Although they are Introverted, ISTJs are rarely isolated; typical ISTJs know just where they belong in life, and want to understand how they can participate in established organizations and systems. They concern themselves with maintaing the social order and making sure that standards are met.

What Makes the ISTJ Tick

ISTJs like to know what the rules of the game are, valuing predictability more than imagination. They rely on their past experience to guide them, and are most comfortable in familiar surroundings. ISTJs trust the proven method, and appreciate the value of dedicated practice to build confidence in their skills.

ISTJs are hardworking and will persist until a task is done. They are logical and methodical, and often enjoy tasks that require them to use step-by-step reasoning to solve a problem. They are meticulous in their attention to details, and examine things closely to be sure they are correct. With their straightforward logic and orientation to detail, ISTJs work systematically to bring order to their own small parts of the world.

Recognizing an ISTJ

ISTJs have a serious, conservative air about them. They want to know and follow the rules of the game, and typically seek out predictable surroundings where they understand their role. You may find the ISTJ doing something useful even in social situations (for instance, organizing coats and hats at a party) as they’re often more comfortable taking charge of a task than they are chatting up strangers. When given something to do, they are highly dependable, and follow it through to the end.

ISTJs are practical and no-nonsense, and rarely call attention to themselves. Their clothes and possessions tend to be chosen based on utility rather than fashion, and they have an affection for the classics. ISTJs typically speak in a straightforward manner and have a good head for details. They are usually more enthusiastic about sharing factual information than exploring abstract concepts or unproven ideas.

For more information: The Art of SpeedReading People

ISTJ in the Population

ISTJ is the third most common type in the population and the most common type among men. ISTJs make up:

  • 12% of the general population
  • 16% of men
  • 7% of women

Popular Hobbies

Popular hobbies for the ISTJ include concentration games like chess and Trivial Pursuit, playing computer games, watching sporting events, pursuing physical fitness, and playing solitary sports such as golf.

Famous ISTJs

Famous ISTJs include Queen Elizabeth II, Harry Truman, Warren Buffett, Queen Victoria, George H.W. Bush, and J.D. Rockefeller.

For more information: Famous ISTJs

Research on ISTJ

Interesting facts about the ISTJ:

  • On personality trait measures, score as Calm, Stable, Steady, Cautious, and Conventional
  • More likely than other types to experience cardiac problems and hypertension
  • More likely than other types to experience chronic pain
  • Among four highest types in college GPA
  • More frequent among African Americans
  • Personal values include Financial Security
  • Most likely of all types to enjoy a work environment where “everything is done by the book”
  • Overrepresented among bank officers, financial managers, MBA students, and small business owners
  • Often found in careers in management, administration, law enforcement, and accounting

What the Experts Say

"All contracts should be cleared by ISTJs; they will overlook nothing that is in it and assume nothing that is not."

- Isabel Briggs Myers, Gifts Differing

"Whether at home or at work, ISTJs are nothing if not reliable, particularly when it comes to inspecting the people and things in their jurisdiction—quietly seeing to it that uniform quality of product is maintained, and that those around them uphold certain standards of attitude and conduct."

- David Keirsey, Please Understand Me II

"ISTJ is a no-frills, work-hard, play-hard type. They are seen as compulsive, hard-charging, capable, and true to their word."

- Otto Kroeger, Type Talk at Work

At Work

ISTJ at Work

At work, ISTJs are dependable and meticulous. ISTJs take deadlines and specifications very seriously, and work independently and systematically to complete the tasks they are given. ISTJs value a stable work environment with clear expectations and few surprises. They are at their best when they can create detailed plans of action and follow them with little deviation.

Although ISTJs may like to do quite a bit of their work independently, they often appreciate the value of participating on a team as well, especially if their colleagues are reasonable and businesslike and there is a clear hierarchy so that they know who is in charge.

An ideal job for an ISTJ allows them to solve logical problems in an orderly way. An ideal work environment for an ISTJ is quiet, organized, and structured, with rules and regulations that are well established and clearly adhered to by all.

For more information: Do What You Are

Least Popular Careers for ISTJs

It is important to note that any personality type can be successful in any occupation. However, some occupations are well suited to the natural talents and preferred work style of the ISTJ, while other occupations demand modes of thinking and behavior that do not come as naturally to the ISTJ. Occupations that require the ISTJ to operate outside their natural preferences may prove stressful or draining, and often sound unappealing to ISTJs who are choosing a career.

The following occupations have been found to be unpopular among ISTJs, based on data gathered from surveys of the general population.

ISTJs as Leaders

As leaders, ISTJs are clear about expectations and procedures. They are action-oriented and practical, and lead their teams to achieve specified outcomes within clear time frames. ISTJs are often attracted to leadership positions because of their natural inclination to organize processes and deliver measurable results.

ISTJs prefer not to improvise and are most comfortable leading in their own areas of expertise, with employees that have demonstrated competence in the field. They often prefer to work within predetermined guidelines and may find it a challenge to innovate or take on projects with no clear standards or expectations.

ISTJs are not typically skilled at politics, and may sometimes overlook niceties in their drive to control process and achieve team goals. They typically motivate their teams by demonstrating a strong work ethic, and are unlikely to initiate personal relationships or offer effusive praise.

ISTJ on a Team

ISTJs are dependable, task-oriented team members. They tend to clarify goals in specific, concrete terms, and look for established standards by which to measure the team’s outcomes. ISTJs prefer a structured team environment where the rules are clear and everyone has a specific set of duties. They work systematically and examine work meticulously, making sure that the details are correct and that the team’s product meets expectations.

ISTJs are very task focused and generally do not want to spend much time debating process; they prefer to just get on with it. Similarly, too much abstract discussion of concepts without a clear action plan will tend to irritate the ISTJ. ISTJs are businesslike in their approach and often have little patience for team members who want to discuss emotions or relationships. They tend to feel that addressing personal issues in a work environment is inappropriate and interferes with the team’s productivity.

For more information: What's Your Type of Career?

Relationships

ISTJ Communication Style

ISTJs communicate in a direct and straightforward way. They are specific and oriented to details, and often communicate primarily to move a task along. The ISTJ typically has a great memory for detail and has a vast storehouse of practical, factual information. Most ISTJs don’t talk for the sake of talking, but will share their knowledge when they see a practical need for it. ISTJs are often no-nonsense and action-oriented in their communication; they tell what they know and what needs to be done.

ISTJs as Partners

In relationships, the ISTJ is loyal and reliable. ISTJs have a strong respect for tradition and often assume typical gender roles in their relationships, with male ISTJs taking on the role of provider and female ISTJs caring for home and family. ISTJs value stability, and tend to appreciate relationships that they can count on over the long term. They keep their promises and expect others to do the same.

ISTJs are resoundingly logical and can be stubborn once they've decided on the best course of action. They usually like things done their way. Often the "proper" course of action is self-evident to the ISTJ, who may have little patience with unconventional approaches.

ISTJs tend to work hard to ensure that their families are provided for and that they are living up to their own expectations of what a good partner should be. They are typically most satisfed with a partner who can recognize and appreciate the hard work they put in to contribute to the household.

ISTJs as Parents

As parents, ISTJs are firm in their expectations and consistent in enforcing rules. They rarely dote on their children, but provide stability, structure, and the practical necessities of life. They may be strict and often emphasize traditional values like responsibility, loyalty, and obedience.

ISTJ parents want to pass on traditions and teach their children how to fit into society. They expect their children to be as dutiful as they are, and concern themselves with teaching their children to work hard, respect authority, and care for their material possessions.

For more information: Please Understand Me II

Connect

Connect with ISTJs

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Comments

Yeah!!!!! Bye!!!!!

There's a lot of speculation about Sheldon Cooper's possible personality type. Most people believe it's INTJ, however while reading information about ISTJ I'm quite sure he is ISTJ. Does anyone else have an opinion on this?

N types are attracted to theoretical work, and S types are attracted to practical work. Since Sheldon is a theoretical physicist in the show, I'd say he is more likely to be an INTJ.

Amazing!! Really confirmed to me who I am. Now I have to let everybody else know!! LOL

I'm an INFJ browsing for a friend. She thinks it makes her sound cold-hearted. I really don't see it that way. Any opinions?

Well, I'm an ISTJ and my friends often say I sound cold hearted but they know better than to really call me that.

Yep, this pretty much sums who I am, except for where most ISTJ's are in career. I've been in banking and it contradicted my personality, don't deal with mean people to well.

this is true and real!!!!!!!!!!

Me to a T. Took a career as a Sales Rep but drifted into technical sales.

WOW! Accurate...to the letter.

This is really accurate. I learnt so much about myself which I never really realised before although the signs were pretty obvious.

Love my job, but finding that certain aspects are pushing me beyond my natural wiring, causing overwhelming stress etc... Realized it was anti-productive both to myself & the organization so wanted to take another look at the myers/briggs test. Took it years ago after getting married so hubby and I could better understand one another & now again today 25+ years later its still providing valuable info that will help me re-frame my role in our organization. Many thanks - wonderful tool & so helpful!!

Darn accurate, unbelivable. Thanks to provide this :) now i know myself more :)

Pretty dead on for the most part.

Pretty much sums me up but I'm not HUGE on tradition, however the communication skills sounds exactly like me.

They should include math teacher for preferred occupations! Structured institutions with rules to be followed, traditions to be passed on, logical problems to be worked thru step by step... But probably only for children 13 and up.

Its liek they know nme #buzzin

I can see how Sheldon Cooper could possible be an ISTJ. I'm not completely sure I'd settle on that for his type, but I'd say it's a fair contender. I can see Si (introverted sensing) being in his stacking of functions, I'm just not sure if it would be his dominant function or not. Personally, I think INTJ is still a better option for him. The key thing with ISTJs is that they think in terms of "the group" in everything that they do and they are very safety/security oriented. I just don't see that in him. On the contrary, he seems very interested in the self only.

Sheldon could be listed as needing a group as he depends so much on his friends for rides and companionship. He would be very alone without his posse!

I found this to be a good look at what im like and I cant argue with it

Nice! I get to be Queen Victoria!

I am definetly istj and my mother to, but I don't agree whith the part of children and as I have experienced my shelf I don't think that this is what shoud be done, I think that people need to teke their own choices and shoudent be pressured to be something!

Totally true, I felt naked.

Really fits me except for the part about typical gender roles

True, true, true. Working now with an ISTJ bully who was formerly a law enforcement officer. Now she is a frustrated female sales manager in a retail environment terrorizing the team. Bad career match = misery for us all. Not judging the rest of you ISTJ folks (my spouse is one!). Just need to be in the correct career path...lol.

Seems true for me. Although All the jobs which "fit" ISTJ seems unappealing for me, and the jobs which are "least fitting" for ISTJ are really appealing for me and I have a desire to work as these.

Very true and smartly written

I really don't know, none of the types really apply to me and I've taken the test multiple times now getting different results. Ah, screw this test, I am my own type.

So ah... How many of the detail-oriented people in here have pointed out the typo in ISTJ's description for "Sensing" so far? ;)

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