On becoming MBTI Certified

The Myers-Briggs Type Indicator certification is useful

Joe Arrigo MBTI Certified Practitioner

I have always been somebody that believed you didn’t need a certification if you already have the practical experience. After all, a certification is just a piece of paper that says you have the median level of competency as assessed by that accredited institution or vendor.

I had been studying MBTI for 2 years prior to getting my certification, so I really didn’t see the need to get it as I felt like I was very much ahead of the class. I had essentially read the entire library of MBTI literature from David Keirsey to Dario Nardi to John Beebe. In my mind, I theoretically had all the concepts locked down.

When I finally bit the bullet and registered for the class, I quickly realized there were many small details that I would not have known without the class. Some of the details are crucial to your professional presentation and administration.

Ethical and Legal

For example, I did not know about the ethical and legal aspects of MBTI, nor did I have the professional know-how to look competent as I was delivering and administering both the test and the subsequent walk-through. I had the theory, but I was missing that logistical administration piece that truly makes you a professional practitioner.

The language of how you give feedback to your client is very important. What tends to happen when you are in “enthusiast mode,” is that you tell people what their Type is, instead of telling them, “Well, you probably prefer introversion over Extraversion, but you have the ability to do both.” During my class, I learned there are specific ways of speaking that both lend credibility and authority to you as a practitioner.

On the practical side of becoming certified, there is the Human Resources box that needs to be checked. When looking to hire an MBTI practitioner for a workshop or coaching session, oftentimes a credentialed professional is required internally to be approved. This ensures that the accredited institution has validated your ability to use the tool and administer it effectively. No matter the fairness of this process, the reality is what it is. I resisted this notion for so long (part of my INTJ personality, no doubt!)

New to Myers-Briggs

Many in the class were part of a larger group that was essentially enrolled by their Director for professional use. This group was part of a career readiness and up-skilling program that was looking to use MBTI as a career guidance tool.

Within this group, some had never heard of MBTI until they took the assessment a week prior. In that case, I do believe the class may feel rigorous and overwhelming with information. Coming in green will probably feel like learning an entire new language that you have to learn in 4 days.

The Final Test

Throughout the course, the instructor highlighted slides that were “important to take notes on,” which is code word for “these will be on the final test.” I found that this was accurate and that paying attention to these throughout the 4 days led to success on the final exam. What is essential to the Myers Briggs Company and the Myers Briggs Foundation is that those who are representing them, do so in an ethical, professional, and formal manner. This criteria manifests itself throughout the final exam.


Overall, it was worth getting the certification to essentially cross my T’s and dot my I’s so there can be no question as to my competency in administering the MBTI assessment. I would recommend certification to those who are already experienced in Typology and for those who are simply enthusiasts.

To book me for MBTI consultations–find my Calendly on the sidebar or here!

For more of my content, you know where to find me:

  1. Youtube
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  3. Blog
  4. Etsy

How to Figure out your MBTI Function Stack

Joe Arrigo attempts to easily explain this complicated formula

MBTI Function Stack

Video Transcript via Zubtitle:

The MBTI function stack is one of the more advanced concepts within personality and I’ve gotten some requests to explain this in a separate video.

So I want to lay it out as best I can. There are a couple different methods I’ve seen or ways to describe how you figure out the function stack.

Everyone understands when they start digging into MBTI, that there is a way that every type processes information and they all have a unique order, but most people don’t actually know how you figure that out.

And it’s fun to point out how to do it, it’s not necessarily important to know if you’re (just) an enthusiast, but it’s almost a cool party trick just to understand people at a level deeper than “oh, you’re an ENFP. That means you’re the cheerleader.”

Well, I want you to be able to figure out this formula and go, “Oh, they’re Extraverted iNtuition with Introverted Feeling” because you can figure it out using this formula in your head.

So, I’m going to share my screen and I’m going to draw it out as best. I can forgive me my hand writing is pretty terrible. But I’m going to go over a couple examples and we’re going to just start off with the ENTJ.

(Watch the video from this point)

I hope that this helps a little bit there are some activities and then some very good resources I can provide via YouTube and in books that will lay out the formula, but I appreciate you watching. Let me know if this clarifies things or if we’re all now more confused than ever.

To book me for MBTI consultations–find my Calendly on the sidebar or here!

For more of my content, you know where to find me:

  1. Youtube
  2. LinkedIn
  3. Blog
  4. Etsy

LinkedIn Poll: Where do you get your energy from?

My LinkedIn poll completely surprised me

LinkedIn poll results

I had a completely biased viewpoint going into this poll. My expectations were aligned with what David Keirsey, author of Please Understand Me, concluded was society’s breakdown of Introverts vs Extraverts, which was 75% Extravert, 25% Introvert. For those that didn’t see my intention, this was my attempt at figuring out which people in my network were I’s and E’s.

However, the results were completely mirrored from what Mr. Keirsey found to be true. 76% Introvert and 24% Extravert?!!

How did this happen?


Some excellent comments need to be highlighted which shed some light on the results, and my errors in the framing of the question.

“Could it be that because you are introverted, the people in your network are also introverted and the results are coming out that way for that reason?”

“I wanted a “both” option, because it depends on how the week went. Sometimes alone time is required, other times, I want to hang out and chat or have a beer.”

“I think it’s dependent on who the other person is. Some people are draining, take your energy without giving any back or they deflect it.

“It might be good to add another option for extroverts that aren’t social, as what fundamentally recharges them is stimulation that triggers the rewards center of the brain and generates dopamine, that can come from others, but it doesn’t necessarily have to either.”

I am BOTH. It depends on what type of recharge I need.”

“I am on the I/E bubble. I can recharge alone OR with a close family member/friend.”

It’s a pretty small sample size. That said, perhaps there’s a bias that more introverted people respond to such written surveys about such things.”

Option 3

Following in the Jungian spirit, my goal was to force an answer in order to get clear results and weed out the fence-sitters. What happened in reality was an overwhelming call for a 3rd option that centered around being “Both, depending on the situation.”

This reaction makes sense, in that nobody can be completely Introverted or Extraverted unless they are in a deep state of mental illness. What I find interesting about the results is the fact that so many respondents needed to clarify why they chose a certain answer, as if choosing a side was somehow limiting or putting them “in a box.”

(Possible) Errors in my poll

Here are some of the faults in my poll:

  • It’s not a representative sample size because my reach is limited to my network
  • 199 respondents is not a large enough data set to get an accurate measure on an entire population
  • Self-reporting is historically inaccurate
  • Introversion vs Extraversion is the hardest dichotomy to force a clear answer


Though this was not a scientifically validated poll, there are takeaways that should be considered relevant on an anecdotal level.

People are dynamic creatures that adapt and change in specific environments and to various stimuli. Thus, trying to force a binary response will be a mixed bag of results, especially when there is not a 3rd option that allows for a “Both, depending on the situation” type answer.

As I mention in my discussions around MBTI and personality, there is no right or wrong answer when it comes to your Type, and everyone has gifts to share that are highly individualized. Embrace them!

To book me for MBTI consultations–find my Calendly on the sidebar or here!

For more of my content, you know where to find me:

  1. Youtube
  2. LinkedIn
  3. Blog
  4. Etsy

Personality Tests are a Scam

You cannot improve yourself

Here’s what I know: personality tests are a scam.
Look, you are perfect as you exist right now.
There is no possible way you can improve. You cannot improve your communication with your spouse, or your colleagues, or your boss.
Everything right now is perfect.
So, if anybody comes to you and says,
“You know, if you take the MBTI assessment, you might fix some of the blind spots you have” that is a total scam. Don’t believe it!
Look, everything you’re doing right now cannot be improved.
You have reached the peak performance of your life.
So, don’t believe the hype around “personality tests.”

Joe Arrigo’s Etsy Store!

File:Etsy logo.svg - Wikimedia Commons

As part of my personal growth as an INTJ, I decided to embrace the lesser known artistic/creative side of my personality.

In doing so, I started an Etsy store focusing on MBTI art. Right now, I am making wall art made out of either metal or glossy poster paper.


The theme is quotations from the most well-known and revered people within that specific type. My only regret is that I did not start an Etsy store sooner!

This personal project will be ongoing.

Reach me at:



INTJ’s in the Workplace

A brief overview of the INTJ

My recommendation to all Managers, Talent Acquisition folks, and Executives for best utilizing the INTJ goes as follows:

  • The INTJ is fundamentally a future-oriented strategic thinker who works very well within systems they can understand and can manipulate into the most efficient way possible.
  • Utilize the INTJ for brainstorming sessions where their creative mindset can reveal ways forward that other people may not be able to see clearly.
  • Do not bog them down with administrative details or they will tire out quickly and become stressed.
  • Pair them with a type like the ENFP or the ESFP in order to balance out some of the more hard-line decision-making tendencies. A good P type will be able to present more options or consider alternative ways to proceed that the INTJ is likely overlooking.
  • When asking for feedback from the INTJ, make sure you give them some time to collect themselves and do not demand an answer right away. Too quick of an answer may not be their true thoughts
  • Keep their intelligence in check and let them know that although you appreciate their intelligence, that if their attitude of superiority and/or condescension continues, disciplinary action will be required
Sųhēl 🖊️ on Twitter: "Still an INTJ 💀 #INTJ #MBTI… "

Overall, the INTJ is a great asset when used for strategy and brainstorming sessions that utilize their future thinking orientation for long-term success of the organization.

To message me directly, find me on LinkedIn at https://www.linkedin.com/in/joe-arrigo/

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