It is possible to misinterpret your natural functions after having them developed over time. For example, many INTPs with Fe can appear to be Fi because their Feeling function is the weakest.

MBTI is mostly there as a guideline so it wouldn’t be much of a surprise if the results fluctuate throughout some time. As people grow older, their weaker functions tend to strengthen and thus become less distinguishable. It’s also noted that online tests are not reliable, especially for people who are not fully informed of how the system works. Many people have distorted self images that will affect the results. For example, some emotional people may think themselves to make rational based decisions in their argument, because of course they’ll think their point of view is valid! They do not understand how to make objective decisions if they’ve never done it before!

Instead of focusing on the letters, focus on what the functions tell you. INTPs and INFPs are similar in terms of Ne and Si. However, the dominant and inferior functions are completely reversed. Are you first and foremost an objective person who lists out the pros and cons of a situation? Or do you base decisions on values and consideration of other people’s feelings?

There is more on the INTJ and INTP in this blog, please refer to the post about Mark Zuckerberg if you’re unsure between INTP and INTJ.

http://drdianehamilton.wordpress.com/2010/10/12/what-is-mark-zuckerbergs-personality-type/ 

This article is wrong! Wrong wrong wrong!

Again, with the common mistake of only comparing the top four letters. Yes, Mr Zuckerberg is creative, he is an introvert and he is a thinker, but skimming over these traits does not determine what type he is. An ESFP can appear to be very intuitively creative because of their Extroverted Sensing (Se) and Extroverted Thinking (Te) and they don’t even need an ‘N’ in their label to decide! We must focus on the functions.

With the INTJ as a lead Introverted iNtuitive, they are very structured and detailed orientated. An INTP can also be keen on details, thanks to their Introverted Thinking and Introverted Sensing, they are regarded to be the most analytical thinkers of all types, but yet their iNtuition is Extroverted, this would imply bursts of creativity and spontaneity.

Over time, opposite functions can be learned and masked quite well, seeing as MBTI exist to help us see our weakness and strengths. However, there are certain things that you cannot hide about your cognitive processing.

Introverted Thinking (Ti)

Watch this video of Mark Zuckerberg.

Now watch how he talks.

Can you see how he pauses every few seconds? That is the biggest give away for an Introverted Thinker. He gathers information in his head, forming the answer before he expresses it. Whereas for an Extroverted Thinker would likely to keep talking, actively processing his thoughts out loud and may fumble over his words as he speaks.

Extroverted iNtuition (Ne)

As for his iNtuition, start to look into his approach to business. How did he start Facebook (besides the well-known controversy of his theft on the Winklevoss twins as it isn’t important)?

For one, he seized on the idea relatively quickly and was very cautious how and where the project would progress. He wasn’t interested in investments, turning down offers to buy the company and looking for the long-term savings. Instead, he continued to build on ideas to improve the company. ‘Hey! I just realised - college kids are only interested in sex! Let’s put in a relationship status on this website!’ ‘Hey! I’ve just got dumped by my girlfriend so I’ll just whip up a site comparing the hotness of two girls with one another!’ ‘Hey! Let’s spontaneously blog about what I’m thinking on Livejournal!’

All these traits are screaming Extroverted iNtution; fast improvisation, impulsiveness, live for the moment and get immediate results. An INTJ, on the other hand, with their strong Introverted iNtuition are likely to do what Eduardo Saverin did; planning and investing for the future vision.

Introverted Sensing (Si)

An introverted sensor is interested and meticulous about detail. They are usually more involved in their own influence and knowledge, taking little interest about the current environment around them. This is why INTPs are usually considered to be outwardly ‘strange’, often they are cut off from the world and appear oblivious to certain things Extroverted Sensors are used to.

One big give away? Mark Zuckerberg’s dress code.

If there was one quirky thing people would notice about Zuckerberg’s appearance, it would be his love for the same set of clothes. He is often seen with a hoodie, a dark t-shirt accompanied by jeans and the same goddamn sandals.

He doesn’t care about his appearance, he doesn’t get in tune with the latest fashion! This is because his Introverted Sensing is his tertiary function. Extroverted Sensors are more likely to go to the gym, take on physically demanding activities from time to time and groom themselves to look presentable (although not a strong priority as Se is their least developed function). But Zuckerberg? What did he do? Mostly stay indoors at his computer hacking away with his buzzing Ti Ne Si, he hasn’t the interest or time to play jock.

Extroverted Feeling (Fe)

Take into account Mr Zuckerberg’s expressions.

Bam, you see it? His expressions are very animated. His whole face moves as he expresses his emotions, this gives away his Extroverted Feeling. Of course, for INTPs, Fe is their weakest function, so it can be uncertain at times whether or not they are Fi or Fe. But being the least developed function, Feelings tend to be a brief uncontrolled explosion. INTPs are usually those nerds in the classroom who may be quiet at one point, then suddenly burst out an answer to their favourite topic and start jumping around in their seat.

INTJs, being Introverted Feelers, are more prone to look serious. They don’t express themselves as easily and as explosively as Fe and they often have that deep analysing look. This does not mean, however, that they are less of a feeler. They are just more reserved about their emotions.

Hope that helps!

Having been frustrated far too many times with people’s misconceptions about MBTI (Myerrs-Briggs Type Indicator), I’ve decided to make a blog on it and hopefully it’ll prove to be informative.

The most common mistake people make about MBTI is that they only look at the four letters when in fact there is much more to it. There is normally a huge difference between the types, regardless if one letter has changed.

The functions are the most important part. Functions determine not only the strength of the ability, but also how it is processed, whether Introverted or Extroverted.

For example, comparing an INTJ to an INTP:

Despite the minimal change between the J and P, INTJ and INTPs are hugely different.

Starting from top to down, the functions gradually weaken.

For example, the INTJ’s functions are:

Dominant: Introverted iNtuition

Auxiliary: Extroverted Thinking

Tertiary: Introverted Feeling

Inferior: Extroverted Sensing

The dominant function is the strongest, the one that we rely on most to drive us forward. The auxiliary supports the dominant function, being the second strongest. The tertiary is third, weaker than the top two, but still supports them. The inferior is the least developed, and will be the opposite of the dominant or auxiliary function.

What The Functions Mean

Feeling

Introverted - Emotions are rarely/not easily shown to others, they are mostly kept inside. This applies to physical appearances too as people express themselves with how they dress. Introverted Feelers tend to dress a lot plainer than their counterparts.

Extroverted - Feelings are outwardly/more easily expressed. This can affect your expressions, with largely animated faces and may get louder when driven by emotions.

Sensing 

Introverted - Detail orientated. Relates the information taken in from the world around them to previously known information and facts. People tend to store detail for later use.

Extroverted - Physical experience orientated. Takes in details of the immediate world around them. This includes the give senses; touch, smell, taste, sound and sight.

Thinking

Introverted  - Makes decisions mostly in the head and focuses on accuracy. They look into inconsistency and great problem solvers. Careful with words, these people may tend to pause in between their lines when speaking as they delve into their minds to think.

Extroverted - Logical and sequential. These people focuses on organising and categorising things. They speak out their thoughts, actively gaining ideas as they speak.

Intuition

Introverted - Long term planners and visions future outcomes. The ability to connect patterns and concepts to formulate them into plans. These people are normally patient and goal orientated.

Extroverted - Creative, gaining ideas and concepts from here-and-now. Likely to be good improvisation artists who uses immediate interactions with their subconscious.